Kaljo Kiisk (3 December 1925 – 20 September 2007) was a Soviet and Estonian actor, film director, screenwriter and politician.

[1] He was best known for his roles as Kristjan Lible [et] from Spring (Estonian: Kevade), Summer (Suvi) and Autumn (Sügis), film adaptations of Oskar Luts' novels, and as Johannes Saarepera from ETV's long-running Õnne 13.

In 1944, aged 18, he served in the anti-aircraft unit of the 20th Waffen Grenadier Division of the SS (1st Estonian), and took part in the Battle of Tannenberg Line.

After World War II, he managed to obscure his military service from the Soviet occupiers.

His most notable works as a director included Naughty Curves (1959) and Dangerous Curves (1961), Madness (1969) and Nipernaadi (1983) He wrote the screenplay of the 1969 film Spring, an adaptation of Oskar Luts' popular novel, in which he also starred as Paunvere's bell-ringer Kristjan Lible [et].