Kaljo

Kaljo is an Estonian masculine given name and, less commonly, a surname.
People named Kaljo include:
;As a given name:

Kaljo Ellik, Estonian politician
Kaljo Kiisk, Estonian actor, film director and politician.
Kaljo Põllu, Estonian artist.
Kaljo Pork, Estonian botanist.
Kaljo Raag, Estonian weightlifter, actor and singer.
Kaljo Raid, Estonian composer, cellist and pastor.

;As a surname:

Julius Kaljo, Estonian footballer.