POWER OF ATTORNEY
      The undersigned, as a Section 16 reporting person of Logitech
International S.A. (the "Company") under the Securities Exchange Act of 1934, as
amended (the "Exchange Act"), hereby constitutes and appoints Bryan Ko, General
Counsel; Jon Shanberge, Associate General Counsel; Alex Grab, Deputy General
Counsel; and Ajit Ramalingam, Corporate Controller; and each of them, as the
undersigned's true and lawful attorney-in-fact for the following actions:
-	to complete and execute Forms 3, 4 and 5 and other forms and all amendments
thereto as such attorney-in-fact shall in his or her discretion determine to be
required or advisable pursuant to Section 16 of the Exchange Act and the rules
and regulations promulgated thereunder, or any successor laws and regulations,
as a consequence of the undersigned's ownership, acquisition or disposition of
securities of the Company; and
-	to do all acts necessary in order to file such forms with the Securities and
Exchange Commission, any securities exchange or national association, the
Company and such other person or agency as the attorney-in-fact shall deem
necessary or appropriate.
      The undersigned hereby ratifies and confirms all that said attorneys
in-fact and agents shall do or cause to be done by virtue hereof.  The
undersigned acknowledges that the foregoing attorneys-in-fact, in serving in
such capacity at the request of the undersigned, are not assuming, nor is the
Company assuming, any of the undersigned's responsibilities to comply with
Section 16 of the Exchange Act.
      This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
foregoing attorneys-in-fact.
      IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 4th day of September, 2019.

      Signature:     /s/ Guy Gecht
      Print Name:  Guy Gecht