Jon Naismith (born 1965)[1] is a producer mainly known for his work on BBC Radio, primarily comedy, including You'll Have Had Your Tea, The Unbelievable Truth and About a Dog.

He co-wrote and starred in the 1988 revue Sheep Go Bare alongside Mel Giedroyc, Simon Munnery, Tom Hollander, Dan Gooch and Sarah Dudman.

[4] Naismith has been producer of the long-running radio panel show I'm Sorry I Haven't a Clue since 1991.

This usually involves testing sound recording levels by means of a "patronising audience participation exercise" and a joke.

Naismith also provides the voiceovers for the show, such as when the host talks about something appearing on the laser display board, he is "the mystery voice for listeners at home".