Sentry

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