Rainsborough

Rainsborough, or spelling variations, may refer to:


 * Thomas Rainsborough (1610–1648), Colonel in the English Civil War, brother of William Rainborowe
 * William Rainborowe (died 1673), Captain and then Major in the English Civil War, brother of Thomas Rainsborough
 * William Rainsborough (1587–1642), English Vice-Admiral in the Royal Navy, and ambassador, their father