John Masham, 1st Viscount Masham (1650–1724), was an English politician and a prominent figure in the early 18th century. He served as a Member of Parliament and was later elevated to the peerage, becoming the first Viscount Masham in 1714. His political career was marked by his alignment with the Tory party during a time of significant political change in England. Masham was also known for his connections to notable intellectuals, including the philosopher John Locke. He was a supporter of the Whig party's policies and played a role in the political landscape of his time, contributing to discussions on governance and philosophy.