- Country: USA
- Genres: Comedy, Horror, Thriller
- Release: 1967-03-09
- Director: William Castle
- Writers: Mark Rodgers , June O’Grady
- Language: English
- Stars: Nigel Green , Mary Badham , Pat Cardi , Robert Pickering , Linda Lawson , Ref Sanchez , Nestor Paiva , William Castle , Raven Grey Eagle
- Runtime: 92 min
- Awards: N/A
- AKA: Plano para Matar (Brazil) , L'héritage diabolique (Belgium) , Давай убьем дядю (Russian Federation) , Let's Kill Uncle, Before Uncle Kills Us (United States of America) , Let's Kill Uncle (India) , To makry heri tou Satana (Greece) , Zabijmy wuja (Poland) , L'Héritage diabolique (France, French Republic) , Let's Kill Uncle (United Kingdom) , Laten we oom vermoorden! (Netherlands the) , Het vervloekte erfdeel (Belgium) , Let's Kill Uncle (Germany) , Matemos al tío (Mexico) , Gioco mortale (Italy) , Let's Kill Uncle (United States of America) , Let's Kill Uncle
- Plot: A 12-year-old orphan who has just inherited a fortune is trapped on an island with his uncle, a former British intelligence commander who intends to kill him. A young girl is the boy's only ally against the sarcastic uncle, who uses hypnotism, a pool of sharks, fire, and poisonous mushrooms as weapons.
- IMDB:tt0060626
Let’s Kill Uncle Cast · · · ALL
William Castle
Director
Nigel Green
Major Kevin Harrison
Mary Badham
Chrissie
Pat Cardi
Barnaby Harrison
Robert Pickering
Travis
Linda Lawson
Justine
Ref Sanchez
Ketchman
Nestor Paiva
Steward
William Castle
Russell Harrison (in car wreck) (uncredited)