Sir (Joseph) John Jarvis, 1st Baronet (25 March 1876 – 3 October 1950) was a British industrialist and philanthropist who became a Conservative Party politician. He sat in the House of Commons from 1935 to 1950 as the Member of Parliament (MP) for Guildford in Surrey, but is best known for his philanthropic and industrial efforts to assist the town of Jarrow in the economic depression of the 1930s.