Who composed the theme song for The Jetsons?

Hoyt Curtin composed the theme song for The Jetsons.

Curtin was the primary composer and musical director associated with many Hanna-Barbera productions, and his energetic score helped give The Jetsons its instantly recognizable space-age identity. The theme combines bright brass, jazz-influenced rhythms, and a memorable opening fanfare that suggests futuristic technology and fast-moving city life.

The series premiered in 1962, when television cartoons were increasingly using distinctive theme music to establish a show's world before the story began. Curtin's work made the theme more than background music: it became one of the best-known signatures of American animation.

A frequent mix-up comes from the Hanna-Barbera name attached to the series. William Hanna and Joseph Barbera created and produced The Jetsons, but Hoyt Curtin is the composer credited for its theme music. Curtin also worked on themes for The Flintstones, Top Cat, Scooby-Doo, and other animated productions.