Look up sentry in Wiktionary, the free dictionary.

Sentry or The Sentry may refer to:

Marvel Comics

• Sentry (Kree)
• Sentry (Curtis Elkins)
• Sentry (Robert Reynolds)
• Senator Ward (comics) or Sentry

Vehicles

• Sentry (AUV), an autonomous underwater vehicle used to measure deep-ocean data
• E-3 Sentry AWACS, airborne early warning aircraft
• Lancair Sentry, American kit aircraft

Other uses

• The Sentry, a PGA Tour golf tournament.
• Picket (military) or sentry, one or more soldiers stationed on guard duty
• The Sentinel (video game), also known as The Sentry
• The Sentry (organization), merger of Not on Our Watch
• The Sentry (Fabritius), a 1654 painting by Carel Fabritius
• "Sentry" (short story), a 1954 short story by Fredric Brown
• Sentry (monitoring system), an automatic near-Earth asteroid collision monitoring system
• Sentry Foods, a chain of grocery stores in Wisconsin, United States
• Sentry Insurance, a Wisconsin-based insurance company
• Sentry Island, Nunavut, Canada
• Sentry Siren, a brand of civil defense sirens