Carry On Cleo is a 1964 British historical comedy film, the tenth in the series of 31 Carry On films (1958–1992). Regulars Sid James, Kenneth Williams, Kenneth Connor, Charles Hawtrey, and Jim Dale are present and Connor made his last appearance until his return in Carry On Up the Jungle six years later. Joan Sims returned to the series for the first time since Carry On Regardless three years earlier. Sims would now appear in every Carry On up to Carry On Emmannuelle in 1978, making her the most prolific actress in the series. Jon Pertwee makes the first of his four appearances in the series. The title role is played by Amanda Barrie in her second and last Carry On. Along with Carry On Sergeant and Carry On Screaming!, its original posters were reproduced by the Royal Mail on stamps to celebrate the 50th anniversary of the Carry On series in June 2008. The film was followed by Carry On Cowboy (1965).

It is often regarded as the best in the series.