POWER OF ATTORNEY

1.	Appointment

	BY THIS POWER OF ATTORNEY, I, the undersigned Director of SPSS Inc., a Delaware
Corporation (the "Company"), HEREBY APPOINT MR. RAYMOND PANZA, EXECUTIVE VICE
PRESIDENT, CORPORATE OPERATIONS, CHIEF FINANCIAL OFFICER AND SECRETARY OF THE
COMPANY, MR. ANTHONY CIRO, VICE PRESIDENT, ASSOCIATE GENERAL COUNSEL AND
ASSISTANT SECRETARY OF THE COMPANY AND MR. ROBERT BRINKMANN, OPERATIONS
CONTROLLER OF THE COMPANY, AT 233 SOUTH WACKER DRIVE, 11TH FLOOR, CHICAGO,
ILLINOIS 60606, to be my Attorney and in my name and on my behalf and as my
Attorney do any act and deed or otherwise to negotiate, determine and approve
the final form and content of, complete, sign, execute, exchange and deliver any
and all agreements, documents, letters, forms, instruments of transfer,
consents, and other documents, and to do any and all acts and things as may be
necessary or, in the opinion of my Attorney, desirable or incidental thereto in
connection with or for the purposes of executing documents in connection with
the requirements of Section 16(a) of the Securities Exchange Act of 1934 and the
rules and regulations promulgated thereunder (the "Section 16 Reporting
Requirements").

2.	Intention and Ratification

	I HEREBY UNDERTAKE to ratify and confirm all acts and things done or lawfully
caused to be done and all agreements, documents, letters, forms, instruments of
transfer, consents and other documents, approved, completed, signed, executed
and delivered whatsoever by my Attorney in my name and on my behalf in pursuance
of the authority conferred in this Power of Attorney and I accept full
responsibility for the contents of the documents referred to above which may be
approved, completed, signed, executed and delivered by my Attorney in my name
and on my behalf.

3.	Indemnity

	I FURTHER UNDERTAKE to indemnify and keep indemnified my Attorney from and
against all losses, liabilities, costs, claims, actions, expenses, proceedings
and obligations incurred or suffered by my Attorney by reason directly or
indirectly of the exercise or purported exercise of any power conferred upon him
or her.

4.	Duration

	I HEREBY DECLARE that the authority conferred by this Power of Attorney shall
be effective as of the date hereof and shall continue in effect for so long as I
am required to file statements with the Securities and Exchange Commission in
connection with the Section 16 Reporting Requirements with respect to the
Company's securities (the "Duration Period").  Notwithstanding the foregoing, I
may, by a written instrument, signed, acknowledged and delivered to my Attorney
during the Duration Period, with a copy to the Company's Secretary, revoke this
Power of Attorney in whole or in part or amend it from time to time in any
respect.

IN WITNESS WHEREOF, I have executed and delivered this Power of Attorney this
4th day of June, 2008.

Name:  /s/ Henry S. Bienen
Specimen signature of Attorney-in-Fact


/s/ Raymond H. Panza

/s/ Anthony Ciro

/s/ Robert Brinkmann



STATE OF Illinois )
			SS.
COUNTY OF Cook )

The undersigned, a notary public in and for the above county and state,
certifies that Henry S. Bienen has caused this Power of Attorney to be executed
and is known to me to be the same person whose name is subscribed above,
appeared before me in person and acknowledged signing and delivering the
instrument as his free and voluntary act, for the uses and purposes therein set
forth, and certified to the correctness of the signature of the
Attorney-in-Fact.

Dated:  June 4, 2008

/s/ Rosemary Rasmussen
Notary Public


My commission expires:
June 5, 2009