Biology and medicine •
Gs alpha subunit, a subtype of G-protein coupled receptors •
Gilbert's syndrome, a liver enzyme disorder which can cause elevated levels of serum bilirubin •
Gitelman syndrome, an autosomal recessive kidney tubule disorder •
Geopathic stress, a pseudoscientific condition
Computing • GS, a group separator character in the
C0 control code set •
.gs, Internet country code top-level domain of South Georgia and the South Sandwich Islands •
GS register, in the X86 computer architecture •
Ghostscript, a free software suite for handling PostScript and Portable Document Format (PDF) files •
Apple IIGS, the most powerful model in the Apple II computer line
Other uses in science and technology • GS, the
METAR reporting code for graupe or hail smaller than in diameter •
Roland GS, an extension of General MIDI electronic musical instruments' specification by Roland Corporation •
g-force, measure in "g's" •
Geprüfte Sicherheit, a safety mark appearing on technical equipment •
Glide slope, part of the instrument landing system used by aircraft •
Ground segment, in space systems •
Gryazev-Shipunov (brand; ; ) Soviet weapons marque ==Sports==