C
- Caleb F. Abbott (1811–1855), Canadian politician
- Cecil Abbott, Australian police commissioner
- Charles Abbott, one of several people including:
- Charles Abbott, 1st Baron Tenterden (1762–1832), English Lord Chief Justice of King's Bench
- Charles Abbott, 3rd Baron Tenterden (1834–1882), British diplomat
- Charles Abbott (footballer), (born 1939), Australian rules footballer
- Charles Conrad Abbott (1843–1919), American archæologist and naturalist
- Charles Greeley Abbot, American astrophysicist, astronomer and Secretary of the Smithsonian Institution
- Charles Lydiard Aubrey Abbott, (1937–1946), Australian politician and administrator of the Northern Territory
- Chauncey M. Abbott (1822–1863), New York politician
- Chris Abbott (born 1947), American television producer, writer and author
- Christie Abbott (born 1982), American actress
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