Samuel Peach (1725–1790) was a London merchant and politician who sat in the House of Commons from 1775 to 1776.
He became a silk merchant in London, and also became a partner in the banking firm of Peach, Fowler and Co.
In December 1774 there was a vacant Parliamentary seat at Cricklade and Peach stood at the by-election on the interest of Arnold Nesbitt.
The process then dragged on for over a year, mainly due to the partiality of the returning officer towards Peach.
Peach was initially returned as Member of Parliament on 4 March 1775 but there was a petition and he was unseated on 19 February 1776.