Geoffrey McIntyre Rowe (8 March 1948 – 14 December 2021), known by his stage name Jethro, was a celebrated Cornish stand-up comedian from the United Kingdom.

Born in St Buryan, Cornwall, on 8 March 1948, Jethro was the son of a farmer. After leaving school, he apprenticed as a carpenter and worked at the Levant tin mine. His father was the founder of the St Buryan Male Voice Choir, and Jethro made his stage debut as a bass singer with the St Just District Operatic Society in St Just.