Tenison or Tennison is a surname. Notable people with the surname include:
- Thomas Tenison (1636-1715), Archbishop of Canterbury
- Renee Tenison (born 1968), American model and actress
- Rosie Tenison (born 1968), American model and actress, identical twin sister of Renee Tenison
Fictional characters:
- Jane Tennison, chief character in the British TV series Prime Suspect
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