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United States securities and exchange commission logo





                             June 1, 2023

       Anthony Mifsud
       Chief Financial Officer
       Corporate Office Properties Trust
       6711 Columbia Gateway Drive, Suite 300
       Columbia, MD 21046

                                                        Re: Corporate Office
Properties Trust
                                                            Form 10-K for
fiscal year ended December 31, 2022
                                                            Filed February 24,
2023
                                                            File No. 001-14023

       Dear Anthony Mifsud:

               We have limited our review of your filing to the financial
statements and related
       disclosures and have the following comment. In our comment, we may ask
you to provide us
       with information so we may better understand your disclosure.

              Please respond to this comment within ten business days by
providing the requested
       information or advise us as soon as possible when you will respond. If
you do not believe our
       comment applies to your facts and circumstances, please tell us why in
your response.

                                                        After reviewing your
response to this comment, we may have additional comments.

       Form 10-K for fiscal year ended December 31, 2022

       Item 7. Management's Discussion and Analysis of Financial Condition and
Results of Operations
       Results of Operations
       Funds from Operations, page 34

   1.                                                   We note your
presentation of Diluted FFO per share and Diluted FFO per share, as
                                                        adjusted for
comparability for which you note Diluted EPS is the most directly
                                                        comparable GAAP
measure. However given the impact of discontinued operations for the
                                                        periods presented, it
is unclear whether these non-GAAP financial measures contemplate
                                                        discontinued
operations. Therefore in future periodic filings, please present with equal or
                                                        greater prominence the
most directly comparable measure calculated in accordance with
                                                        GAAP for these non-GAAP
financial measures. Refer to Item 10(e)(1)(i)(A) of
                                                        Regulation S-K and
Question 102.10(a) of the Division's Compliance and Disclosure
                                                        Interpretations on
Non-GAAP Financial Measures.
 Anthony Mifsud
Corporate Office Properties Trust
June 1, 2023
Page 2

       In closing, we remind you that the company and its management are
responsible for the
accuracy and adequacy of their disclosures, notwithstanding any review,
comments, action or
absence of action by the staff.

      You may contact Mark Rakip, Staff Accountant at 202.551.3573 or Isaac
Esquivel, Staff
Accountant at 202.551.3395 with any questions.



FirstName LastNameAnthony Mifsud                          Sincerely,
Comapany NameCorporate Office Properties Trust
                                                          Division of
Corporation Finance
June 1, 2023 Page 2                                       Office of Real Estate
& Construction
FirstName LastName
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