Sentinel
- 3rd Infantry Regiment (United States)
- AN/GSQ-272 Sentinel
- Alan Scott
- Albert Paley
- Animal sentinel
- Apex Legends
- Bryan Brandenburg
- CTC Sentinel
- Centinela (disambiguation)
- Christian Science Sentinel
- Defenders of the Faith
- Defense of the Ancients
- Dragontown
- Final Fantasy XIII
- Frank Underwood (House of Cards)
- Guard (disambiguation)
- Gundam Sentinel
- Heritage High School (Conyers, Georgia)
- III (Xerath album)
- LGM-35 Sentinel
- LMS Sentinel 7164
- LMS Sentinel 7192
- LMS Sentinels 7160-3
- La Sentinelle (disambiguation)
- Leaves of Yesteryear
- MPQ-64 Sentinel
- Mass Effect
- Melbourne High School (Victoria)
- Mount Sentinel
- Murder Drones
- Of Faith, Power and Glory
- Peter Carter (author)
- Phenomena (Within the Ruins album)
- RQ-170 Sentinel
- Raytheon Sentinel
- Resistance 2
- Rochester Institute of Technology
- Sentinel (1990 video game)
- Sentinel (FBI)
- Sentinel (album)
- Sentinel (band)
- Sentinel (comic book)
- Sentinel (comics)
- Sentinel (horse)
- Sentinel (iOS game)
- Sentinel (instrumental)
- Sentinel (newspaper)
- Sentinel (publisher)
- Sentinel (revolver)
- Sentinel (satellite)
- Sentinel (sculpture)
- Sentinel (space telescope)
- Sentinel (steamboat)
- Sentinel Building (disambiguation)
- Sentinel Buttress
- Sentinel Dome
- Sentinel Island (disambiguation)
- Sentinel Mesa
- Sentinel Mountain (Montana)
- Sentinel Offender Services
- Sentinel Peak (Alberta)
- Sentinel Peak (Antarctica)
- Sentinel Peak (Arizona)
- Sentinel Peak (British Columbia)
- Sentinel Project (disambiguation)
- Sentinel Range
- Sentinel Rock
- Sentinel Secondary School
- Sentinel Sound
- Sentinel Waggon Works
- Sentinel lymph node
- Sentinel tank
- Sentinel value
- Sentinel, Arizona
- Sentinel, California
- Sentinel, Missouri
- Sentinel, Oklahoma
- Sentinel-class cutter
- SentinelOne
- Sentinelese
- Sentinelle
- Sentinels (Hudson)
- Sentinels (esports)
- Sentinels novels
- Sentry (disambiguation)
- Soundtrack for the Voices in My Head Vol. 2
- Stinson L-5 Sentinel
- The Arcanum Order
- The Calling (Hilltop Hoods album)
- The Sentinel (1977 film)
- The Sentinel (1992 film)
- The Sentinel (2006 film)
- The Sentinel (American Horror Story)
- The Sentinel (Centralia, Washington statue)
- The Sentinel (Child novel)
- The Sentinel (Guwahati)
- The Sentinel (KSU)
- The Sentinel (Konvitz novel)
- The Sentinel (Stargate SG-1)
- The Sentinel (TV series)
- The Sentinel (Zion)
- The Sentinel (album)
- The Sentinel (anthology)
- The Sentinel (module)
- The Sentinel (short story)
- The Sentinel (video game)
- The Sentinel, Hout Bay
- The Sentinels
- Urban Rivals
- Watchman (disambiguation)