A longsword is a type of European two-handed sword.
Longsword may also refer to:
People William Longsword (893–942), the second ruler of Normandy William of Winchester, Lord of Lunenburg (1184–1213), or William Longsword William Longespée, 3rd Earl of Salisbury (1176–1226) ("Long Sword")
Other uses Long Sword dance, an English hilt-and-point sword dance Longsword (novel), a 1762 work by the Irish writer Thomas Leland