What does GPO stand for?

Gemini Program - or Project Office - NASA (KSC)

Gemini Project Office (SAUS)

General Periodicals Ondisc - Database

General Pico - Argentina - Airport symbol (OAG)

General Post Office - British - Defunct

General Practitioner Obstetrician

General-Purpose Oscilloscope

General-Purpose Outlet (ADA)

General-Purpose Output - Space Flight Operations Facility, NASA

Genprobe Tech - Vancouver Stock Exchange symbol

Georgia Pacific-Oregon - Federal Railroad Administration identification code

GIANT Group - NYSE symbol

Giant Group Ltd. - NYSE symbol (SPSG)

Giant Portland Cement Co. (SAUO)

Glas-Ply, Kirkland, WA - Manufacturer code for watercraft hull identification number (USCG)

Glycerin-1-Phosphate-Oxydase (SAUS)

GOOS Programme Office (SAUS)

GOOS Project Office (SAUO)

Government Printing Office - Environment term (AUEG)

Granulopoietin - Hypothetical substance - Hematology

Great Plains Organization (SAUS)

Gross Product Originating - Department of Transportation

Group Purchasing Organization - Health insurance

Guaranteed Purchase Option - Insurance

Guidance-Pilotage Orbital (SAUS)

Gunner's Primary Optics (MCD)

Gun Position Officer (NATG)

Library of Congress, Government Printing Office - Source file - UTLAS symbol

Portland, OR - Location identifier - FAA (FAAL)

United States Government Printing Office, Alexandria, VA - OCLC symbol (OCLC)

US Government Printing Office (SAUS)