Once Upon a Summertime is a Chet Baker album released in 1980 on Galaxy Records, a subsidiary of Fantasy Records. The album compiles recordings made between 1977 and 1979, during Baker's career resurgence in Europe.
The sessions took place in European studios, possibly in Italy or France, with local musicians. Baker plays trumpet and sings in a lyrical, melancholic style typical of his late period, with a repertoire of jazz standards and ballads.
The album includes versions of songs such as 'Once Upon a Summertime' (by Michel Legrand) and 'You Don't Know What Love Is'. Although exact producers are unknown, the album is valued by collectors for Baker's interpretive quality in his later years.