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                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

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                                   FORM N-PX

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         ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED MANAGEMENT
                              INVESTMENT COMPANY

                 Investment Company Act file number: 811-21238

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                   PIMCO Corporate & Income Opportunity Fund
              (Exact name of registrant as specified in charter)

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                       1633 Broadway, New York, NY 10019
                    (Address of Principal Executive Office)

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                 Allianz Global Investors Fund Management LLC
                                 1633 Broadway
                              New York, NY 10019
                    (Name and Address of Agent for Service)

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       Registrant's telephone number, including area code: 212-739-3000

                     Date of fiscal year end: November 30

         Date of reporting period: July 1, 2012 through June 30, 2013

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Item 1. Proxy Voting Record



UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

FORM N-PX

ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED
MANAGEMENT INVESTMENT COMPANY

Investment Company Act File Number :            811-21238

Name of Registrant:      PIMCO Corporate & Income Opportunity Fund

Address of Principal Executive Offices:
                       1633 Broadway
                       New York, New York 10019
Name and address of agent of service:
                       Allianz Global Investors Fund Management LLC
                       PIMCO Corporate & Income Opportunity Fund
                       1633 Broadway
                       New York, New York 10019

Registrant's telephone number including area code:


Date of reporting period:
                       07/01/2012    -   06/30/2013





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Registrant Name : PIMCO Corporate & Income Opportunity Fund
Fund Name : PIMCO Corporate & Income Opportunity Fund

The fund did not vote proxies relating to portfolio securities during the period
covered by this report.

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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.

(Registrant):               PIMCO Corporate & Income Opportunity Fund

By (Signature and Title)*:  /s/ Brian Shlissel
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                            Name: Brian Shlissel
                            Title: President and Chief Executive Officer

Date: August 27, 2013

* Print the name and title of each signing officer under his or her signature.