The name Eliza means God Is My Oath and is of English origin. Eliza is a name that's been used primarily by parents who are considering baby names for girls.
Eliza is a shortened form of the name Elizabeth. Made famous by the fictional character Eliza Doolittle, originally from the play "Pygmalion" later turned into the musical "My Fair Lady." Eliza Dushku, actress. Eliza McCardle Johnson, U.S. first lady to Andrew Johnson.