Aymar de Lairon, also Adeymar, Adémar or Aimerich, was the lord of Caesarea in right of his wife from at least 1193 until her death between 1213 and 1216. During this period he was a prominent figure in the Kingdom of Jerusalem. As a widower he became the marshal of the Knights Hospitaller until his own death in battle.
- Position held
- Marshall of kingdom of Jerusalem
- Born
- 1200
- Died
- October 1218, 1219
