Ondřej Hejma (born 3 February 1951) is a Czech singer and songwriter, vocalist of the band Žlutý pes.

After high school, Hejma studied English and Chinese philology at the Faculty of Arts at Charles University in Prague, and he worked briefly in an advertising agency.

He later became part of a samizdat network of film enthusiasts, for whom he provided dubbing of videotapes imported from abroad.

At the time, he covered key moments of the Velvet Revolution and the initial period of economic transformation.

In 2012, Hejma began writing and gradually publishing the autobiographical trilogy Fejsbuk, Americký Blues, and Srdce Zlomený.

Hejma has also performed with the alternative project LL Jetel with Radim Hladík and Ernouš Šedivý.