Conon de Béthune (before 1160 in the former region of Artois, today Pas-de-Calais - 17 December 1219, possibly at Adrianople) was a French crusader and "trouvère" poet who became a senior official and finally regent of the Latin Empire of Constantinople. Alternative spellings of his name include Coesnes, Quenes, Conain, and Quenon.