SG1 (disambiguation)

SG1 commonly refers to Stargate SG-1, a television show.

SG1 may also refer to:

• SG1 (or SG/1), a version of the Heckler & Koch G3 rifle
• SG1, a minor planet notation indicating the thirty-third discovery in late September of a given year, see provisional designation in astronomy
  • 1941 SG1, the asteroid 1546 Izsák
  • 1955 SG1, the asteroid 4300 Marg Edmondson
  • 1973 SG1, the asteroid 14792 Thyestes
  • 1974 SG1, the asteroid 2756 Dzhangar
  • 1987 SG1, the asteroid 6474 Choate
  • 1989 SG1, the asteroid 7934 Sinatra
  • 1992 SG1, the asteroid 7250 Kinoshita
• Scanlan SG-1, a glider
• Schlachtgeschwader 1, a German Luftwaffe unit during World War II
• SG1 postcode district, in the SG postcode area, in Stevenage in the United Kingdom