Bolonchén or Bolonchén de Rejón is a town in the Mexican state of Campeche, about 120 km east from the state capital, Campeche, in Hopelchén Municipality. As of 2010 the town had a population of 3,975 people. A short distance to the south of Bolonchén are located the caves of Xtacunbilxunan.