Stephen Sondheim (1930–2021) was an American stage musical and film composer and lyricist.
Sondheim may also refer to:
Sondheim (surname) Stephen Sondheim Theatre, a Broadway theatre in New York City named for the composer since 2010 Sondheim Theatre, a theatre in the West End of London named for the composer since 2019 Sondheim vor der Rhön, Bavaria, Germany