<?xml version="1.0" encoding="us-ascii"?><InstanceReport xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><Version>2.2.0.25</Version><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios><ReportLongName>0215 - Disclosure - Subsequent Events</ReportLongName><DisplayLabelColumn>true</DisplayLabelColumn><ShowElementNames>false</ShowElementNames><RoundingOption /><HasEmbeddedReports>false</HasEmbeddedReports><Columns><Column><Id>1</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelColumn>false</LabelColumn><CurrencyCode>USD</CurrencyCode><FootnoteIndexer /><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios><MCU><KeyName>1/1/2011 - 3/31/2011
USD ($)

USD ($) / shares

</KeyName><CurrencySymbol>$</CurrencySymbol><contextRef><ContextID>Jan-01-2011_Mar-31-2011</ContextID><EntitySchema>http://www.sec.gov/CIK</EntitySchema><EntityValue>0001289848</EntityValue><PeriodDisplayName /><PeriodType>duration</PeriodType><PeriodStartDate>2011-01-01T00:00:00</PeriodStartDate><PeriodEndDate>2011-03-31T00:00:00</PeriodEndDate><Segments /><Scenarios /></contextRef><UPS><UnitProperty><UnitID>USD</UnitID><UnitType>Standard</UnitType><StandardMeasure><MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema><MeasureValue>USD</MeasureValue><MeasureNamespace>iso4217</MeasureNamespace></StandardMeasure><Scale>0</Scale></UnitProperty><UnitProperty><UnitID>USDEPS</UnitID><UnitType>Divide</UnitType><NumeratorMeasure><MeasureSchema>http://www.xbrl.org/2003/iso4217</MeasureSchema><MeasureValue>USD</MeasureValue><MeasureNamespace>iso4217</MeasureNamespace></NumeratorMeasure><DenominatorMeasure><MeasureSchema>http://www.xbrl.org/2003/instance</MeasureSchema><MeasureValue>shares</MeasureValue><MeasureNamespace>xbrli</MeasureNamespace></DenominatorMeasure><Scale>0</Scale></UnitProperty><UnitProperty><UnitID>Shares</UnitID><UnitType>Standard</UnitType><StandardMeasure><MeasureSchema>http://www.xbrl.org/2003/instance</MeasureSchema><MeasureValue>shares</MeasureValue><MeasureNamespace>xbrli</MeasureNamespace></StandardMeasure><Scale>0</Scale></UnitProperty></UPS><CurrencyCode>USD</CurrencyCode><OriginalCurrencyCode>USD</OriginalCurrencyCode></MCU><CurrencySymbol>$</CurrencySymbol><Labels><Label Id="1" Label="3 Months Ended" /><Label Id="2" Label="Mar. 31, 2011" /></Labels></Column></Columns><Rows><Row><Id>2</Id><IsAbstractGroupTitle>true</IsAbstractGroupTitle><Level>0</Level><ElementName>hurn_SubsequentEventsAbstract</ElementName><ElementPrefix>hurn</ElementPrefix><IsBaseElement>false</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>Subsequent Events.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole /><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText /><NonNumericTextHeader /><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>xbrli:stringItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Subsequent Events.</ElementDefenition><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Subsequent Events [Abstract]</Label></Row><Row><Id>3</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><Level>0</Level><ElementName>us-gaap_ScheduleOfSubsequentEventsTextBlock</ElementName><ElementPrefix>us-gaap</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><ShortDefinition>No definition available.</ShortDefinition><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsSubReportEnd>false</IsSubReportEnd><IsCalendarTitle>false</IsCalendarTitle><IsTuple>false</IsTuple><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboselabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Note 15 - us-gaap:ScheduleOfSubsequentEventsTextBlock--&gt;
   &lt;div style="font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 12pt"&gt;&lt;b&gt;15. Subsequent Events&lt;/b&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;On April&amp;#160;14, 2011 (&amp;#8220;Closing Date&amp;#8221;), the Company and certain of the Company&amp;#8217;s subsidiaries as
   guarantors entered into an Amended and Restated Credit Agreement, dated as of April&amp;#160;14, 2011, (the
   &amp;#8220;Agreement&amp;#8221;) with the various financial institutions party thereto, which include, Bank of America,
   N.A., as lender, administrative agent and collateral agent for the lenders; JPMorgan Chase Bank,
   N.A., as lender and syndication agent; PNC Bank, National Association, Harris N.A. and KeyBank
   National Association as lenders and Co-Documentation Agents; Fifth Third Bank, The Northern Trust
   Company, RBS Citizens, N.A., The PrivateBank and Trust Company, FirstMerit Bank, N.A., and
   Northbrook Bank &amp;#038; Trust Company as lenders (collectively the &amp;#8220;Lenders&amp;#8221;); and Merrill Lynch, Pierce,
   Fenner &amp;#038; Smith Incorporated and J.P. Morgan Securities LLC, as joint lead arrangers and joint book
   managers. The Agreement replaces the Credit Agreement, dated as of June&amp;#160;7, 2006, and all subsequent
   amendments thereto, by and among the Company and the lenders therein.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Under the Agreement, the Lenders have agreed to make available to the Company a senior secured
   credit facility in an aggregate principal amount of $350&amp;#160;million comprised of the following: a
   five-year revolving credit facility under which the Company may borrow from time to time up to $150
   million and a $200&amp;#160;million five-year term loan facility which was funded in a single advance on the
   closing date. The revolving credit facility is reduced by any letters of credit outstanding. The
   Agreement provides for the option to increase the revolving credit facility in an aggregate amount
   of up to $50&amp;#160;million subject to certain requirements as defined in the Agreement. The proceeds of the senior secured
   credit facility are to be used (i)&amp;#160;to refinance existing indebtedness, and (ii)&amp;#160;for working
   capital, capital expenditures, and other lawful corporate purposes.
   &lt;/div&gt;
   &lt;!-- Folio --&gt;
   &lt;!-- /Folio --&gt;
   &lt;/div&gt;
   &lt;!-- PAGEBREAK --&gt;
   &lt;div style="font-family: 'Times New Roman',Times,serif"&gt;
   &lt;div align="center" style="font-size: 10pt; margin-top: 0pt"&gt;
   &lt;b&gt;
   &lt;/b&gt;
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;Fees and interest on borrowings vary based on the Company&amp;#8217;s total debt to earnings before interest,
   taxes, depreciation and amortization ratio as set forth in the Agreement and will be based on a
   spread over LIBOR or a spread over the base rate, as selected by the Company. The base rate is the
   greater of (a)&amp;#160;the Federal Funds Rate plus 0.5%, (b)&amp;#160;the Prime Rate and (c)&amp;#160;except during a
   Eurodollar Unavailability Period, the Eurodollar Rate plus 1.0%.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;The commitment under the revolving credit facility will terminate five years from the Closing Date,
   at which time the outstanding principal balance and all accrued interest and fees will be due and
   payable in full. The term loan is subject to scheduled quarterly amortization payments equal to
   7.5% of the original principal balance in year one, 10.0% in year two, 12.5% in years three and
   four, and 57.5% in year five, as set forth in the Agreement. The maturity date for the term Loan is
   April&amp;#160;14, 2016, at which time the outstanding principal balance and all accrued interest will be
   due and payable in full. The maturity date of any borrowings is automatically accelerated upon the
   bankruptcy or insolvency of the Company or any of its subsidiaries and may be accelerated by the
   Lenders upon the default in the payment of any principal, interest or fees on the borrowings, the
   default in the payment of amounts in any other agreements in excess of $15&amp;#160;million, the failure by
   the Company to comply with or perform certain specified covenants or agreements in the Agreement,
   any representation or warranty in the Agreement and specified other documents is breached or is
   false or misleading, or a change in control of the Company.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;The Agreement also includes financial covenants that require the Company to maintain certain
   leverage ratio, fixed charge coverage ratio and net worth levels. In addition, certain
   acquisitions and similar transactions will need to be approved by the Lenders.
   &lt;/div&gt;
   &lt;div align="left" style="font-size: 10pt; margin-top: 6pt"&gt;On April&amp;#160;14, 2011, the Company also entered into an Amended and Restated Security Agreement (the
   &amp;#8220;Security Agreement&amp;#8221;) and an Amended and Restated Pledge Agreement (the &amp;#8220;Pledge Agreement&amp;#8221;) with
   Bank of America, N.A. as collateral agent for the holders of the secured obligations. The Security
   Agreement is required by the terms of the Agreement in order to secure the obligations thereunder,
   and grants Bank of America, for the benefit of the Lenders under the Agreement, a first-priority
   lien, subject to permitted liens, on substantially all of the personal property assets of the
   Company and the subsidiary grantors. The Pledge Agreement is also required by the terms of the
   Agreement in order to secure the obligations thereunder, and grants Bank of America, for the
   benefit of the Lenders under the Agreement, a first-priority lien, subject to permitted liens, on
   100% of the issued and outstanding equity interests of the Company and each of its domestic
   subsidiaries and 65% of the issued and outstanding equity interests of certain foreign
   subsidiaries.
   &lt;/div&gt;
   &lt;/div&gt;
</NonNumbericText><NonNumericTextHeader>&lt;!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" --&gt;
   &lt;!-- Begin Block Tagged Note</NonNumericTextHeader><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios></Cell></Cells><OriginalInstanceReportColumns /><Unit>Other</Unit><ElementDataType>us-types:textBlockItemType</ElementDataType><SimpleDataType>string</SimpleDataType><ElementDefenition>Describes disclosed significant events or transactions that occurred after the balance sheet date, but before the issuance of the financial statements. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, losses resulting from fire or flood, losses on receivables, significant realized and unrealized gains and losses that result from changes in quoted market prices of securities, declines in market prices of inventory, changes in authorized or issued debt (SEC), significant foreign exchange rate changes, substantial loans to insiders or affiliates, significant long-term investments, and substantial dividends not in the ordinary course of business.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 5
 -Paragraph 11

</ElementReferences><IsTotalLabel>false</IsTotalLabel><IsEPS>false</IsEPS><Label>Subsequent Events</Label></Row></Rows><Footnotes /><NumberOfCols>1</NumberOfCols><NumberOfRows>2</NumberOfRows><ReportName>Subsequent Events</ReportName><MonetaryRoundingLevel>UnKnown</MonetaryRoundingLevel><SharesRoundingLevel>UnKnown</SharesRoundingLevel><PerShareRoundingLevel>UnKnown</PerShareRoundingLevel><ExchangeRateRoundingLevel>UnKnown</ExchangeRateRoundingLevel><HasCustomUnits>false</HasCustomUnits><SharesShouldBeRounded>true</SharesShouldBeRounded></InstanceReport>
