Glen James Hansard (born 21 April 1970) is an Irish singer-songwriter and musician. Since 1990, he has been the frontman of the Irish rock band The Frames, with whom he has released six studio albums, four of which have charted in the top ten of the Irish Album Charts. In the 2000s, he was one half of folk rock duo The Swell Season before releasing his debut solo album, Rhythm and Repose, in 2012. His 2015 second album Didn't He Ramble was nominated for the Grammy Award for Best Folk Album.

Primarily a musician, he has also acted and written music for film; he appeared in the BAFTA-winning film The Commitments (1991) and starred in the Irish music drama Once (2007) which earned him a number of major awards, including the Academy Award for Best Original Song for "Falling Slowly" with co-writer and co-star Markéta Irglová. The film was later adapted into a musical theatre production.