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Nigel John Hess (born 22 July 1953) is a British composer best known for his television, theatre and film soundtracks, including the theme tunes to Wycliffe, Dangerfield, Hetty Wainthropp Investigates and Ladies in Lavender.

Hess was educated at Weston-super-Mare Grammar School for Boys, and went on to study music at Cambridge University, where he was Music Director of the famous Footlights Revue Company. He has since worked extensively as a composer and conductor in television, theatre and film.

Hess has composed numerous scores for both American and British television productions, including A Woman of Substance, Vanity Fair, Campion, Testament (Ivor Novello Award for Best TV Theme), Summer's Lease (Television & Radio Industries Club Award for Best TV Theme), Titmuss Regained, Maigret, Classic Adventure, Dangerfield, Just William, Wycliffe (Royal Television Society Nomination for Best TV Theme), Hetty Wainthropp Investigates (Ivor Novello Award for Best TV Theme and Royal Television Society Nomination for Best TV Theme), Badger, Ballykissangel, New Tricks and Stick With Me Kid for Disney. His best-known film score is Ladies in Lavender (Classical Brits Nomination for Best Soundtrack Composer) starring Dame Judi Dench and Dame Maggie Smith. The music has become popular worldwide, and was performed in the film by violinist Joshua Bell with the Royal Philharmonic Orchestra.