GBS

GBS may refer to:
*Game Boy Sound System
*Gastric bypass surgery
*Gay Bowel Syndrome [http://cancerweb.ncl.ac.uk/cgi-bin/omd?gay+bowel+syndrome] , a series of colon and anorectal diseases
*Group B Streptococcus, a type of bacteria
*George Bernard Shaw, an Irish playwright
*Glenbrook South High School
*Global Broadcast Service, United States military satellite system
*GNU build system
*God's Bible School and College
*Gandaki Boarding School
*Great Big Sea, a Canadian band
*Guillain-Barré syndrome
*post-nominal letters for the Gold Bauhinia Star in Hong Kong, the second highest rank in the Hong Kong honours system
*Gravity base structure, an offshore petroleum production platform as used for Hibernia (oil field)
*Gross Budgetary Support