Hannes Kaljujärv (born on January 4, 1957 in Tartu) is an Estonian actor. In 1979 he graduated from the University of Tartu with a degree in physical education. In 1979 he also finished courses with Evald Hermaküla's Vanemuine study studio. Since 1979 he is working at the Vanemuine theatre. Besides stage roles he has also participated on several films.

In 2013 he was awarded with Order of the White Star, IV class. His son is actor Rasmus Kaljujärv.