Tõnu Naissoo (born 18 March 1951) is an Estonian composer and jazz pianist.
He began studying classical piano at the age of six at the Tallinn Music School, graduating in 1970 with a degree in music theory.
In 1982 he graduated from the Tallinn State Conservatory in composition under instruction from Eino Tamberg.
[1] He has played on several musical groups, including Tõnu Naissoo Trio, Optimistid (1967–1968), Collage (1967–1972), Sinilind (1971–1972), Laine (1972–1976), Synthesis (1977–1980), Kaseke (1980–1981).
[1] He has written music for films and theatrical stages.