POWER OF ATTORNEY
Know all by these presents that the undersigned hereby constitutes and appoints
each of Mitchell Gaynor, Blair Walters and Mary Ahern, or either of them signing
singly, and with full power of substitution, the undersigned's true and lawful
attorney in fact to: (1) prepare, execute in the undersigned's name and on the
undersigned's behalf, and submit to the U.S. Securities and Exchange Commission
(the "SEC") a Form ID, including amendments thereto, and any other documents
necessary or appropriate to obtain codes and passwords enabling the undersigned
to make electronic filings with the SEC of reports required by Section 16(a) of
the Securities Exchange Act of 1934 or any rule or regulation of the SEC; (2)
execute for and on behalf of the undersigned, in the undersigned's capacity as
an officer and/or director of Marvell Technology Group Ltd. (the "Company"),
Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange
Act of 1934 and the rules thereunder; (3) do and perform any and all acts for
and on behalf of the undersigned which may be necessary or desirable to complete
and execute any such Form 3, 4, or 5, complete and execute any amendment or
amendments thereto, and timely file such form with the SEC and any stock
exchange or similar authority; and (4) 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 such attorney in fact's discretion.  The
undersigned hereby grants to each such attorney in fact full power and authority
to do and perform any and every act and thing whatsoever requisite, necessary,
or proper to be done in the exercise of any of the rights and powers herein
granted, as fully to all intents and purposes as the undersigned might or could
do if personally present, with full power of substitution or revocation, hereby
ratifying and confirming all that such attorney in fact, or such attorney in
fact's substitute or substitutes, shall lawfully do or cause to be done 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, nor is the
Company assuming, any of the undersigned's responsibilities to comply with
Section 16 of the Securities Exchange Act of 1934.  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 15 day December, 2016.


	________________________________
		Thomas F. Lagatta