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Form 4 NUVEEN MUNICIPAL HIGH For: May 26 Filed by: MOSCHNER ALBIN F

May 26, 2022 12:55 PM EDT
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person *
MOSCHNER ALBIN F

(Last) (First) (Middle)
C/O NUVEEN INVESTMENTS
333 W. WACKER DRIVE

(Street)
CHICAGO IL 60606

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND [ NMZ ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
Officer (give title below) X Other (specify below)
Trustee
3. Date of Earliest Transaction (Month/Day/Year)
05/26/2022
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 05/26/2022   P   1,500 A $ 12.33 1,500 D  
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
Remarks:
moschnerpoa.txt
Mark L. Winget/ Signed Under POA 05/26/2022
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
POWER OF ATTORNEY

	For Executing Forms 3, 4 and 5

Know all by these present, that the undersigned hereby constitutes and appoints
each Gifford R. Zimmerman, Kevin J. McCarthy, Mary E. Keefe, Christopher M.
Rohrbacher and Mark L. Winget, his/her true and lawful attorney-in-fact to:

(1)		execute for and on behalf of the undersigned Forms 3, 4 and 5 (and any
amendments thereto) in connection with the Nuveen Investments Closed-End
Exchange Traded Funds and in accordance with the requirements of Section 16(a)
of the Securities Exchange Act of 1934 and Section 30(f) of the Investment
Company Act of 1940 and the rules thereunder;

(2)		do and perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable in connection with the execution and timely filing
  of any such Form 3, 4 and 5 (and any amendment thereto) with the United States
  Securities and Exchange Commission, the New York Stock Exchange and any other
authority; and

(3)		take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of the
  undersigned pursuant to this Power of Attorney shall be in such form and shall
  contain such terms and conditions as such attorney-in-fact may approve in
his/her discretion.

The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform each and every act and thing whatsoever requisite,
necessary and proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as such attorney-in-fact
might or could do if personally present, with the full power of substitute, by
virtue of this power of attorney and the rights and powers herein granted.  The
undersigned acknowledges that the foregoing attorneys-in-fact, in serving in
such capacity at the request of the undersigned, are not assuming any of the
undersigned's responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934 and Section 30(f) of the Investment Company Act of 1940.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 24th  day
of   June     2016.


									/s/ Albin F. Moschner
									Signature

									Albin F. Moschner
									Print Name

STATE OF 	Illinois

COUNTY OF 	Cook


On this 24th  day of    June   2016, personally appeared before me, a Notary
Public in and for said County and State, the person named above who is known to
me to be the person whose name and signature is affixed to the foregoing Power
of Attorney and who acknowledged the same to be his voluntary act and deed for
the intent and purposes therein set forth.



	/s/ Janice C. Nelson
	Notary Public
My Commission Expires:  07/07/2018





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