Lysander \l(y)-san-der, lys(a)-nder\ as a boy's name is pronounced lye-SAN-der. It is of Greek origin, and the meaning of Lysander is "liberator". In Greek history, Lysander was a Spartan naval and military commander in 400 BC. Also the name of a character in Shakespeare's "A Midsummer Night's Dream". Lisandro is a Spanish form.