Senator Loomis may refer to:
Chauncey Loomis (1780s–1817), New York State Senate Chester Loomis (1789–1873), New York State Senate Dwight Loomis (1821–1903), Connecticut State Senate James Chaffee Loomis (1807–1877), Connecticut State Senate James H. Loomis (1823–1914), New York State Senate Orland Steen Loomis (1893–1942), Wisconsin State Senate