Pierre Soulé (August 31, 1801 – March 26, 1870) was a French-American attorney, politician, and diplomat in the mid-19th century. Serving as a U.S. senator from Louisiana from 1849 to 1853, he was nominated that year as U.S. Minister to Spain, a post that he held until 1855. Born and raised in southwest France, Soulé was exiled for revolutionary activities. He moved to Great Britain and then the United States, where he settled in New Orleans, became an attorney, and entered politics.