FORM N-PX
       ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED MANAGEMENT
                            INVESTMENT COMPANY

Investment Company Act file number: 811-21131

John Hancock Preferred Income Fund
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  (Exact name of registrant as specified in charter)

601 Congress Street
Boston, Massachusetts 02210-2805
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  (Address of principal executive offices)

Noel Maffucci
601 Congress Street
Boston, Massachusetts 02210-2805
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  (Name and address of agent for service)


Registrant's telephone number, including area code: 1-800-225-5291

Date of Fiscal year-end: 6/30/2006

Date of reporting period: 07/01/2005 - 06/30/2006

Item 1. Proxy Voting Record

PREFERRED INCOME


ALLIANT ENERGY CORP.

Ticker:       LNT            Security ID:  018802108
Meeting Date: MAY 12, 2006   Meeting Type: Annual
Record Date:  MAR 20, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Ann K. Newhall             For       For        Management
1.2   Elect Director Dean C. Oestreich          For       For        Management
1.3   Elect Director Carol P. Sanders           For       For        Management
2     Amend Omnibus Stock Plan                  For       Abstain    Management
3     Ratify Auditors                           For       For        Management


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DTE ENERGY CO.

Ticker:       DTE            Security ID:  233331107
Meeting Date: APR 27, 2006   Meeting Type: Annual
Record Date:  FEB 27, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Alfred R. Glancy, III      For       For        Management
1.2   Elect Director John E. Lobbia             For       For        Management
1.3   Elect Director Eugene A. Miller           For       For        Management
1.4   Elect Director Charles W. Pryor, Jr.      For       For        Management
1.5   Elect Director Joe W. Laymon              For       For        Management
2     Approve Omnibus Stock Plan                For       For        Management
3     Ratify Auditors                           For       For        Management


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ONEOK, INC.

Ticker:       OKE            Security ID:  682680103
Meeting Date: MAY 18, 2006   Meeting Type: Annual
Record Date:  MAR 21, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director William L. Ford            For       For        Management
1.2   Elect Director Douglas Ann Newsom, Ph.D.  For       For        Management
1.3   Elect Director Gary D. Parker             For       For        Management
1.4   Elect Director Eduardo A. Rodriguez       For       For        Management
2     Ratify Auditors                           For       For        Management
3     Separate Chairman and CEO Positions       Against   Against    Shareholder


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PEOPLES ENERGY CORP.

Ticker:       PGL            Security ID:  711030106
Meeting Date: FEB 24, 2006   Meeting Type: Annual
Record Date:  DEC 27, 2005

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect  Director Keith E. Bailey           For       For        Management
1.2   Elect  Director James R. Boris            For       For        Management
1.3   Elect  Director William J. Brodsky        For       For        Management
1.4   Elect  Director Pastora San Juan Cafferty For       For        Management
1.5   Elect  Director Diana S. Ferguson         For       For        Management
1.6   Elect  Director John W. Higgins           For       For        Management
1.7   Elect  Director Dipak C. Jain             For       For        Management
1.8   Elect  Director Michael E. Lavin          For       For        Management
1.9   Elect  Director Homer J. Livingston       For       For        Management
1.10  Elect  Director Thomas M. Patrick         For       For        Management
1.11  Elect  Director Richard P. Toft           For       For        Management
2     Ratify Auditors                           For       For        Management


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SCOTTISH POWER PLC

Ticker:       SPI            Security ID:  81013T705
Meeting Date: JUL 22, 2005   Meeting Type: A
Record Date:  JUN 3, 2005

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.00  Approve financial statements              For       For        Management
2.00  Approve remuneration policy               For       For        Management
3.00  To re-elect as a director Charles Berry   For       For        Management
4.00  To re-elect as a director Donald Brydon   For       For        Management
5.00  To re-elect as a director Nolan Karras    For       For        Management
6.00  Appoint auditors and set their fees       For       For        Management
7.00  Approve political donation                For       Abstain    Management
8.00  Issue stock w/ preemptive rights          For       For        Management
9.00  Issue stock w/o preemptive rights         For       For        Management
10.00 Authorize share repurchase                For       For        Management
11.00 Amend borrowing powers                    For       For        Management


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SCOTTISH POWER PLC

Ticker:       SPI            Security ID:  81013T705
Meeting Date: JUL 22, 2005   Meeting Type: S
Record Date:  JUN 27, 2005

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.00  Approve divestiture/spin-off              For       For        Management


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SCOTTISH POWER PLC

Ticker:       SPI            Security ID:  81013T705
Meeting Date: MAY 4, 2006    Meeting Type: Special
Record Date:  MAR 28, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1     TO APPROVE THE CAPITAL REORGANIZATION,    For       For        Management
      THE RETURN OF CASH, THE AMENDMENTS TO THE
      COMPANY S ARTICLES OF ASSOCIATION AND THE
      AMENDMENTS TO THE EXISTING AUTHORITIES TO
      ALLOT NEW SHARES, DISAPPLY PRE-EMPTION
      RIGHTS AND TO MAKE MARKET PURCHASES OF
      ORDINARY SH


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TECO ENERGY, INC.

Ticker:       TE             Security ID:  872375100
Meeting Date: APR 26, 2006   Meeting Type: Annual
Record Date:  FEB 16, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director Sara L. Baldwin            For       For        Management
1.2   Elect Director Luis Guinot, Jr.           For       For        Management
1.3   Elect Director Sherrill W. Hudson         For       For        Management
1.4   Elect Director Loretta A. Penn            For       For        Management
1.5   Elect Director William P. Sovey           For       For        Management
2     Ratify Auditors                           For       For        Management


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WACHOVIA PREFERRED  FUNDING CORP

Ticker:       WNA PR         Security ID:  92977V206
Meeting Date: MAY 16, 2006   Meeting Type: Annual
Record Date:  MAR 31, 2006

#     Proposal                                  Mgt Rec   Vote Cast  Sponsor
1.1   Elect Director James E. Alward            For       For        Management
1.2   Elect Director Joel J. Griffin            For       For        Management
1.3   Elect Director Charles F. Jones           For       For        Management
1.4   Elect Director G. Kennedy Thompson        For       For        Management



Any ballot marked  'Abstain' is considered  to have been voted.  Ballots  marked
'Abstain'  are   considered   to  be  have  been  voted   against   management's
recommendation,  regardless of whether the recommendation is 'For' or 'Against,'
except where  management  has made no  recommendation  or has  recommended  that
shareholders 'Abstain.'

Where  management has recommended that  shareholders  'Abstain' from voting on a
ballot item: 1) a ballot  market  'Abstain' is considered to have been voted for
management's  recommendation  to  'Abstain'  and  2) a  ballot  voted  'For"  or
'Against' is considered to have been voted against  management's  recommendation
to 'Abstain.'

Where management has made no  recommendation  on a ballot item, the abbreviation
"N/A" is used to denote that there is no applicable  recommendation  compared to
which a vote may be 'For' or 'Against' the recommendation of management.

SIGNATURES:
Pursuant  to the  requirements  of the  Investment  Company  Act  of  1940,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned, thereunto duly authorized.

John Hancock Preferred Income Fund
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       (Registrant)

By:    /s/Keith F. Hartstein
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       Keith F. Hartstein
       President and Chief Executive Officer

Date:  August 30, 2006