10 June] 1890 – 23 December 1970) was an Estonian navy officer, diplomat, and painter.

Aleksander Warma studied at marine schools in Käsmu and Narva, and he took a deep sea captain's exam in Riga.

In 1920, he took the high school exams for the examination committee of the Tallinn Teachers' Training College.

Fro 1926 to 1927, Warma was the director of the legal bureau of the Ministry of Foreign Affairs, from 1927 to 1931 the director of the Administrative Department of Foreign Affairs, from 1931 to 1933 the counsellor of the Estonian Legation in Moscow, from 1933 to 1938 the consul-general in Leningrad (today St. Petersburg), from 1938 to 1939 the Estonian envoy to Lithuania, and from 1939 to 1944 to the Estonian envoy to Finland.

Warma served as prime minister in duties of the President of the Republic of Estonia from March 29, 1963, to December 23, 1970.