Meaning and information about Langley, What does Langley mean? Langley means 'King Henry IV, 1' Earl of March. 'King Henry VI, III' Edmund, Earl of Rutland and son to Richard Plantagenet. 'Tragedy of King Lear' Edmund, bastard son to Gloucester. 'King Richard The Second' Edmund Langley, Duke of York and uncle to the King. Find similar names like Langley.