15 September] 1882 in Hüpassaare – 28 October 1963) was an Estonian composer, organist and collector of folk songs.

Saar was born in the small borough of Hüpassaare[1] (now in Karjasoo, Suure-Jaani Parish), Kreis Fellin in the Livonian Governorate of the Russian Empire (now Estonia), to Mihkel and Ann Saar (née Kimmel).

In 1901, Saar left home to study music at the Saint Petersburg Conservatory.

The marriage ended in divorce when Elise moved to the United States in 1937, initially expecting Saar to join her.

Saar's lyrics have been compared to the poetry of Anna Haava and Juhan Liiv.