Filed Pursuant to Rule 424(b)(2)

Registration Statement No. 333-219206

GS Finance Corp. $42,678,000 Buffered Digital S&P 500^® Index-Linked Notes due 2019 guaranteed by The Goldman Sachs Group, Inc.

This pricing supplement addendum relates to $270,000 principal amount of notes, which we call the “reopened notes,” which are being initially offered on the date of this pricing supplement addendum. $42,408,000 principal amount of the notes, which we call the “original notes,” were issued on April 17, 2018, as described in the accompanying pricing supplement no. 3,221 dated April 12, 2018.  The original notes and the reopened notes have identical terms and conditions and have the same CUSIP (40055AY43) and ISIN (US40055AY436) numbers. In this pricing supplement addendum, the term “notes” means, collectively, the reopened notes and the original notes.

The following information supplements, and should be read with, the accompanying pricing supplement no. 3,221 dated April 12, 2018, the accompanying product supplement no. 1,742 dated July 10, 2017, the accompanying general terms supplement no. 1,734 dated July 10, 2017, the accompanying prospectus supplement dated July 10, 2017 and the accompanying prospectus dated July 10, 2017.

You should read the additional disclosure in the accompanying pricing supplement no. 3,221 dated April 12, 2018 so that you may better understand the terms and risks of your investment, including the credit risk of GS Finance Corp. and The Goldman Sachs Group, Inc. See page PS-12 of the accompanying pricing supplement no. 3,221 dated April 12, 2018.

The estimated value of your reopened notes at the time the terms of your reopened notes are set on May 2, 2018 is equal to approximately $1,002 per $1,000 face amount, which is less than the original issue price of the reopened notes. For a discussion of the estimated value and the price at which Goldman Sachs & Co. LLC would initially buy or sell your notes, if it makes a market in the notes, see the following page.

Original issue date:	May 7, 2018	Original issue price:	100.95% of the face amount of the reopened notes
Underwriting discount:	0.35% of the face amount of the reopened notes	Net proceeds to the issuer:	100.6% of the face amount of the reopened notes

Neither the Securities and Exchange Commission nor any other regulatory body has approved or disapproved of these securities or passed upon the accuracy or adequacy of this prospectus. Any representation to the contrary is a criminal offense. The notes are not bank deposits and are not insured by the Federal Deposit Insurance Corporation or any other governmental agency, nor are they obligations of, or guaranteed by, a bank.

Goldman Sachs & Co. LLC

Pricing Supplement No. 3,221 Addendum dated May 2, 2018.

We may decide to sell more notes after the date the reopened notes were traded (May 2, 2018) at issue prices and with underwriting discounts and net proceeds that differ from the amounts set forth above.  The return (whether positive or negative) on your investment in the notes will depend in part on the issue price you pay for such notes.

GS Finance Corp. may use this prospectus in the initial sale of the notes. In addition, Goldman Sachs & Co. LLC (“GS&Co.”) or any other affiliate of GS Finance Corp. may use this prospectus in a market-making transaction in a note after its initial sale. Unless GS Finance Corp. or its agent informs the purchaser otherwise in the confirmation of sale, this prospectus is being used in a market-making transaction.

Estimated Value of Your Notes

The estimated value of your reopened notes at the time the terms of your reopened notes are set on May 2, 2018 (as determined by reference to pricing models used by Goldman Sachs & Co. LLC (GS&Co.) and taking into account our credit spreads) is equal to approximately $1,002 per $1,000 face amount, which is less than the original issue price of the reopened notes. The value of your notes at any time will reflect many factors and cannot be predicted; however, the price (not including GS&Co.’s customary bid and ask spreads) at which GS&Co. would initially buy or sell notes (if it makes a market, which it is not obligated to do) on May 2, 2018 and the value that GS&Co. will initially use on May 2, 2018 for account statements and otherwise is equal to approximately the estimated value of your notes at the time of pricing of your reopened notes, plus an additional amount (which initially, on the trade date of the initial offering of the notes, was equal to $7 per 1,000 face amount).

Prior to April 12, 2019, the price (not including GS&Co.’s customary bid and ask spreads) at which GS&Co. would buy or sell your reopened notes (if it makes a market, which it is not obligated to do) will equal approximately the sum of (a) the then-current estimated value of your notes (as determined by reference to GS&Co.’s pricing models) plus (b) any remaining additional amount (the additional amount will decline to zero on a straight-line basis from the time of pricing of the original notes through April 11, 2019). On and after April 12, 2019, the price (not including GS&Co.’s customary bid and ask spreads) at which GS&Co. would buy or sell your reopened notes (if it makes a market) will equal approximately the then-current estimated value of your notes determined by reference to such pricing models.

About Your Prospectus

The notes are part of the Medium-Term Notes, Series E program of GS Finance Corp. and are fully and unconditionally guaranteed by The Goldman Sachs Group, Inc. This prospectus includes this pricing supplement and the accompanying documents listed below. This pricing supplement addendum constitutes a supplement to the documents listed below and should be read in conjunction with such documents:

●Pricing supplement no. 3,221 dated April 12, 2018

●Product supplement no. 1,742 dated July 10, 2017

●General terms supplement no. 1,734 dated July 10, 2017

●Prospectus supplement dated July 10, 2017

●Prospectus dated July 10, 2017

The information in this pricing supplement addendum supersedes any conflicting information in the documents listed above. In addition, some of the terms or features described in the listed documents may not apply to your notes.

PS-2

The Underlier

The S&P 500^® Index includes a representative sample of 500 leading companies in leading industries of the U.S. economy. The S&P 500^® Index is calculated, maintained and published by S&P Dow Jones Indices LLC (“S&P”).

As of July 31, 2017, companies with multiple share class lines are no longer eligible for inclusion in the S&P 500^® Index. Constituents of the S&P 500^® Index prior to July 31, 2017 with multiple share class lines will be grandfathered in and continue to be included in the S&P 500^® Index. If a constituent company of the S&P 500^® Index reorganizes into a multiple share class line structure, that company will remain in the S&P 500^® Index at the discretion of the S&P Index Committee in order to minimize turnover. Also as of July 31, 2017, the criteria employed by S&P for purposes of making additions to the S&P 500^® Index were changed as follows:

● with respect to the “U.S. company” criterion, (i) the IEX was added as an “eligible exchange” for the primary listing of the relevant company’s common stock and (ii) the former “corporate governance structure consistent with U.S. practice” requirement was removed; and

● with respect to constituents of the S&P MidCap 400^® Index and the S&P SmallCap 600^® Index that are being considered for addition to the S&P 500^® Index, the financial viability, public float and/or liquidity eligibility criteria no longer need to be met if the S&P Index Committee decides that such an addition will enhance the representativeness of the S&P 500^® Index as a market benchmark.

As of April 9, 2018, the 500 companies included in the S&P 500^® Index were divided into eleven Global Industry Classification Sectors. The Global Industry Classification Sectors include (with the approximate percentage currently included in such sectors indicated in parentheses): Consumer Discretionary (12.69%), Consumer Staples (7.69%), Energy (5.81%), Financials (14.80%), Health Care (13.75%), Industrials (10.07%), Information Technology (24.28%), Materials (2.88%), Real Estate (2.79%), Telecommunication Services (1.92%) and Utilities (2.89%). (Sector designations are determined by the underlier sponsor using criteria it has selected or developed. Index sponsors may use very different standards for determining sector designations. In addition, many companies operate in a number of sectors, but are listed in only one sector and the basis on which that sector is selected may also differ. As a result, sector comparisons between indices with different index sponsors may reflect differences in methodology as well as actual differences in the sector composition of the indices.) S&P and MSCI, Inc. have announced that the Global Industry Classification Sector structure is expected to be updated after the close of business on September 28, 2018. Among other things, the update is expected to broaden the current Telecommunications Services sector and rename it the Communication Services sector. The renamed sector is expected to include the existing telecommunication companies, as well as companies selected from the Consumer Discretionary sector currently classified under the Media Industry group and the Internet & Direct Marketing Retail sub-industry, along with select companies currently classified in the Information Technology sector. Further, companies that operate online marketplaces for consumer products and services are expected to be included under the Internet & Direct Marketing sub-industry of the Consumer Discretionary sector, regardless of whether they hold inventory.

The above information supplements the description of the underlier found in the accompanying general terms supplement no. 1,734. This information was derived from information prepared by the underlier sponsor, however, the percentages we have listed above are approximate and may not match the information available on the underlier sponsor’s website due to subsequent corporate actions or other activity relating to a particular stock. For more details about the underlier, the underlier sponsor and license agreement between the underlier sponsor and the issuer, see “The Underliers — S&P 500^® Index” on page S-40 of the accompanying general terms supplement no. 1,734.

The S&P 500^® Index is a product of S&P Dow Jones Indices LLC, and has been licensed for use by GS Finance Corp. (“Goldman”). Standard & Poor’s^® and S&P^® are registered trademarks of Standard & Poor’s Financial Services LLC; Dow Jones^® is a registered trademark of Dow Jones Trademark Holdings LLC (“Dow Jones”) and these trademarks have been licensed for use by S&P Dow Jones Indices LLC and sublicensed for certain purposes by Goldman. Goldman’s notes are not sponsored, endorsed, sold or promoted by S&P Dow Jones Indices LLC, Dow Jones, Standard & Poor’s Financial Services LLC or any of their respective affiliates and neither S&P Dow Jones Indices LLC, Dow Jones, Standard & Poor’s Financial Services LLC or any of their respective affiliates make any representation regarding the advisability of investing in such notes.

PS-3

Historical Closing Levels of the Underlier

The following information supplements the information provided in the accompanying pricing supplement no. 3,221 dated April 12, 2018.The closing level of the underlier has fluctuated in the past and may, in the future, experience significant fluctuations. Any historical upward or downward trend in the closing level of the underlier during the period shown below is not an indication that the underlier is more or less likely to increase or decrease at any time during the life of your notes.

You should not take the historical levels of the underlier as an indication of the future performance of the underlier. We cannot give you any assurance that the future performance of the underlier or the underlier stocks will result in your receiving an amount greater than the outstanding face amount of your notes on the stated maturity date.

Neither we nor any of our affiliates make any representation to you as to the performance of the underlier. Before investing in the reopened notes, you should consult publicly available information to determine the levels of the underlier between the date of this pricing supplement addendum and the date of your purchase of the reopened notes. The actual performance of the underlier over the life of the reopened notes, as well as the cash settlement amount, may bear little relation to the historical closing levels shown below.

The graph below shows the daily historical closing levels of the underlier from May 2, 2008 through May 2, 2018. We obtained the closing levels in the graph below from Bloomberg Financial Services, without independent verification.

Historical Performance of the S&P 500^® Index 

PS-4

Supplemental Plan of Distribution

See “Supplemental plan of distribution; conflicts of interest” on page PS-7 of the accompanying pricing supplement no. 3,221. GS Finance Corp. estimates that its share of the total offering expenses, excluding underwriting discounts and commissions, will be approximately $5,000.

GS Finance Corp. has agreed to sell to GS&Co., and GS&Co. has agreed to purchase from GS Finance Corp., the aggregate face amount of the reopened notes specified on the front cover of this pricing supplement addendum. GS&Co. proposes initially to offer the notes to the public at the original issue price set forth on the cover page of this pricing supplement addendum, and to certain securities dealers at such price less a concession not in excess of 0.25% of the face amount.

We will deliver the reopened notes against payment therefor in New York, New York on May 7, 2018. Under Rule 15c6-1 of the Securities Exchange Act of 1934, trades in the secondary market generally are required to settle in two business days, unless the parties to any such trade expressly agree otherwise. Accordingly, purchasers who wish to trade reopened notes on any date prior to two business days before delivery will be required to specify alternative settlement arrangements to prevent a failed settlement.

We have been advised by GS&Co. that it intends to make a market in the notes. However, neither GS&Co. nor any of our other affiliates that makes a market is obligated to do so and any of them may stop doing so at any time without notice. No assurance can be given as to the liquidity or trading market for the notes.

Validity of the Notes and Guarantee

In the opinion of Sidley Austin LLP, as counsel to GS Finance Corp. and The Goldman Sachs Group, Inc., when the reopened notes offered by this pricing supplement addendum have been executed and issued by GS Finance Corp., the related guarantee offered by this pricing supplement addendum has been executed and issued by The Goldman Sachs Group, Inc., and such notes have been authenticated by the trustee pursuant to the indenture, and such notes and the guarantee have been delivered against payment as contemplated herein, (a) such reopened notes will be valid and binding obligations of GS Finance Corp., enforceable in accordance with their terms, subject to applicable bankruptcy, insolvency and similar laws affecting creditors' rights generally, concepts of reasonableness and equitable principles of general applicability (including, without limitation, concepts of good faith, fair dealing and the lack of bad faith), provided that such counsel expresses no opinion as to the effect of fraudulent conveyance, fraudulent transfer or similar provision of applicable law on the conclusions expressed above and (b) such related guarantee will be a valid and binding obligation of The Goldman Sachs Group, Inc., enforceable in accordance with its terms, subject to applicable bankruptcy, insolvency and similar laws affecting creditors' rights generally, concepts of reasonableness and equitable principles of general applicability (including, without limitation, concepts of good faith, fair dealing and the lack of bad faith), provided that such counsel expresses no opinion as to the effect of fraudulent conveyance, fraudulent transfer or similar provision of applicable law on the conclusions expressed above. This opinion is given as of the date hereof and is limited to the laws of the State of New York and the General Corporation Law of the State of Delaware as in effect on the date hereof. In addition, this opinion is subject to customary assumptions about the trustee’s authorization, execution and delivery of the indenture and the genuineness of signatures and certain factual matters, all as stated in the letter of such counsel dated July 10, 2017, which has been filed as Exhibit 5.6 to the registration statement on Form S-3 filed with the Securities and Exchange Commission by GS Finance Corp. and The Goldman Sachs Group, Inc. on July 10, 2017.

PS-5