497

U.S. Wealth Management
601 Congress Street
Boston, MA 02210
(617) 663-4324
Fax: (617) 663-2196
E-Mail: nkolokithas@jhancock.com

Name:	Nicholas J. Kolokithas
Title:	Assistant Vice President and Senior Counsel

March 27, 2013

VIA EDGAR TRANSMISSION

U.S. Securities and Exchange Commission
100 F Street, N.E.
Washington, DC 20549

RE: John Hancock Sovereign Bond Fund (the “Trust”), on behalf of:
John Hancock Bond Fund ( the “Fund”)
File Nos. 02-48925; 811-02402

Ladies and Gentlemen:

On behalf of the Trust, transmitted for filing, pursuant to Rule 497 under the Securities Act of 1933, are exhibits containing interactive data format risk/return summary information for the Fund.

The interactive data files included as exhibits to this filing relate to the forms of prospectus filed with the Securities and Exchange Commission on March 21, 2013 on behalf of the Fund pursuant to Rule 497(e) (Accession No. 0000950123-13-001694), which is incorporated by reference into this Rule 497 Document.

If you have any questions or comments, please call me at (617) 663-4324.

Sincerely,

/s/ Nicholas J. Kolokithas

Nicholas J. Kolokithas, Esq.

Assistant Secretary of the Trust

Exhibit Index

EX-101.INS	XBRL Instance Document
EX-101.SCH	XBRL Taxonomy Extension Schema Document
EX-101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
EX-101.LAB	XBRL Taxonomy Extension Labels Linkbase Document
EX-101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document
EX-101.DEF	XBRL Taxonomy Extension Definition Linkbase Document

-1-

XML

John Hancock Bond Fund (the "fund")

Supplement dated 3-21-2013 to the current Prospectuses

In the "Fund summary – Principal investment strategies" section, the first paragraph is amended and restated, as follows:

Under normal market conditions, the fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in a diversified portfolio of bonds. These may include, but are not limited to, corporate bonds and debentures, as well as U.S. government and agency securities. Most of these securities are investment grade, although the fund may invest up to 25% of its net assets in debt securities that are rated, at the time of acquisition, below investment-grade (i.e., "junk bonds"), as low as CC by Standard & Poor's Ratings Services (S&P) or Ca by Moody's Investors Service, Inc. (Moody's), or in unrated securities determined by the fund's investment adviser or subadviser to be of comparable credit quality. There is no limit on the fund's average maturity.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Registrant Name

dei_EntityRegistrantName

JOHN HANCOCK SOVEREIGN BOND FUND

Prospectus Date

rr_ProspectusDate

Oct. 01, 2012

Supplement [Text Block]

jhsbf1_SupplementTextBlock

John Hancock Bond Fund (the "fund")

Supplement dated 3-21-2013 to the current Prospectuses

In the "Fund summary – Principal investment strategies" section, the first paragraph is amended and restated, as follows:

Under normal market conditions, the fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in a diversified portfolio of bonds. These may include, but are not limited to, corporate bonds and debentures, as well as U.S. government and agency securities. Most of these securities are investment grade, although the fund may invest up to 25% of its net assets in debt securities that are rated, at the time of acquisition, below investment-grade (i.e., "junk bonds"), as low as CC by Standard & Poor's Ratings Services (S&P) or Ca by Moody's Investors Service, Inc. (Moody's), or in unrated securities determined by the fund's investment adviser or subadviser to be of comparable credit quality. There is no limit on the fund's average maturity.

John Hancock Bond Fund | Prospectus Class A, B, C, I, R6 and R2 Shares

Risk/Return:

rr_RiskReturnAbstract

Supplement [Text Block]

jhsbf1_SupplementTextBlock

John Hancock Bond Fund (the "fund")

Supplement dated 3-21-2013 to the current Prospectuses

In the "Fund summary – Principal investment strategies" section, the first paragraph is amended and restated, as follows:

Under normal market conditions, the fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in a diversified portfolio of bonds. These may include, but are not limited to, corporate bonds and debentures, as well as U.S. government and agency securities. Most of these securities are investment grade, although the fund may invest up to 25% of its net assets in debt securities that are rated, at the time of acquisition, below investment-grade (i.e., "junk bonds"), as low as CC by Standard & Poor's Ratings Services (S&P) or Ca by Moody's Investors Service, Inc. (Moody's), or in unrated securities determined by the fund's investment adviser or subadviser to be of comparable credit quality. There is no limit on the fund's average maturity.

XML

Document and Entity Information	12 Months Ended
	Oct. 01, 2012
Risk/Return:
Document Type	Other
Document Period End Date	May 31, 2012
Registrant Name	JOHN HANCOCK SOVEREIGN BOND FUND
Central Index Key	0000045288
Amendment Flag	false
Document Creation Date	Mar. 21, 2013
Document Effective Date	Mar. 21, 2013
Prospectus Date	Oct. 01, 2012

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	JOHN HANCOCK SOVEREIGN BOND FUND
Prospectus Date	rr_ProspectusDate	Oct. 01, 2012
Document Creation Date	dei_DocumentCreationDate	Mar. 21, 2013