Sir George Moore (1709–1787) was a Manx merchant who was the Speaker of the House of Keys and their leader in the efforts to obtain better terms for Manx commerce after the Act of Revestment. It was largely due to his efforts that the island was not annexed to Cumberland as previously planned. He was the son of Philip Moore (died 1746), who had also been a member of the House of Keys, and became a major merchant very heavily involved in the running trade and owned various vessels. He was also a partner in a Glasgow bank.