Horatio Townshend (c.1683–1751) was an English banker and politician.
He was the son of Horatio Townshend, 1st Viscount Townshend and his second wife Mary Ashe, daughter of Sir Joseph Ashe, 1st Baronet, and was educated at Eton College. He was Member of Parliament for Great Yarmouth from 1715 to 1722, in which year he became a director of the Bank of England. He was then Member of Parliament for Heytesbury from 1727 to 1734.
Townshend was Governor of the Bank of England from 1733 to 1735. He had been Deputy Governor from 1732 to 1733. He replaced Edward Bellamy as Governor and was succeeded by Bryan Benson.