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United States securities and exchange commission logo





                               August 17, 2021

       Sumit Roy
       Chief Executive Officer
       Orion Office REIT Inc.
       7 St. Paul Street, Suite 820
       Baltimore, MD 21202

                                                        Re: Orion Office REIT
Inc.
                                                            Draft Registration
Statement on Form 10
                                                            Submitted July 21,
2021
                                                            CIK No. 0001873923

       Dear Mr. Roy:

              We have reviewed your draft registration statement and have the
following comments. In
       some of our comments, we may ask you to provide us with information so
we may better
       understand your disclosure.

              Please respond to this letter by providing the requested
information and either submitting
       an amended draft registration statement or publicly filing your
registration statement on
       EDGAR. If you do not believe our comments apply to your facts and
circumstances or do not
       believe an amendment is appropriate, please tell us why in your
response.

             After reviewing the information you provide in response to these
comments and your
       amended draft registration statement or filed registration statement, we
may have additional
       comments.

       Information Statement submitted July 21, 2021

       General

   1.                                                   We note your disclosure
on page 190 that you own 100% of the outstanding common
                                                        units of Orion LP.
However, you also disclose that Orion LP is authorized to issue
                                                        convertible units, such
as LTIP Units, Performance Units and Preferred Units. Please
                                                        clarify your ownership
structure and, if known, quantify the expected percentage
                                                        ownership of Orion LP
to be held by you, your affiliates and other entities.
   2.                                                   Please clarify how you
intend to contribute office properties to Orion. Disclose if any
                                                        holders of units or
other interests of Realty Income, L.P. will be entitled to receive any
                                                        Orion LP units or any
other form of compensation in connection with the spinoff.
 Sumit Roy
Orion Office REIT Inc.
August 17, 2021
Page 2
Business and Properties
Our Company, page 104

3.    We note that you intend to classify each of your properties as "core" or
"non-core"
      and selectively dispose of non-core properties in the portfolio that do
not fit your
      investment evaluation framework. Please disclose which properties are
considered non-
      core, to the extent that they have been identified as such.
Index to Financial Statements, page F-1

4.    Please update the financial statements and all relevant financial
disclosures to comply
      with Rule 3-12 of Regulation S-X.
       You may contact Peter McPhun at 202-551-3581 or Kristina Marrone at
202-551-3429 if
you have questions regarding comments on the financial statements and related
matters. Please
contact Ruairi Regan at 202-551-3269 or Brigitte Lippmann at 202-551-3713 with
any other
questions.



                                                            Sincerely,
FirstName LastNameSumit Roy
                                                            Division of
Corporation Finance
Comapany NameOrion Office REIT Inc.
                                                            Office of Real
Estate & Construction
August 17, 2021 Page 2
cc:       William Cernius, Esq
FirstName LastName
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