Geirr Lystrup (born 22 March 1949) is a Norwegian singer, poet, playwright and children's writer.
His debut album was Ti på taket og Måltrostblues from 1972.
His album Songen om kjærligheta from 1981 (a cooperation with Det Norske Kammerkor) was awarded Spellemannprisen.
He has played with the music group Godtfolk, and their first album Egg og Champagne from 1988 was awarded Spellemannprisen.
Among his plays is Brakar og Joanna, staged at Riksteatret at its 50th anniversary in 1999.