Other
- Spencer Cogswell, a character in The Jetsons (see The Jetsons#Characters)
- USS Cogswell (DD-651), a destroyer
- Cogswell, North Dakota, a city in Sargent County
- Cogswell College in Sunnyvale, California
- Henry Cogswell College in Everett, Washington
- Cogswell Tower in Halifax, Nova Scotia
- Cogswell's Regiment of Militia, a Massachusetts militia from 1775-1777
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