Treehouse of Horror

Treehouse of Horror may refer to:
 * Treehouse of Horror XXIII Event, the 2012 major event
 * Treehouse of Horror XXIV Event, the 2013 major event
 * Treehouse of Horror XXV Event, the 2014 major event
 * Treehouse of Horror XXVI Event, the 2015 major event
 * Treehouse of Horror XXVII Event, the 2016 major event
 * Treehouse of Horror XXVIII Event, the 2017 major event
 * Treehouse of Horror XXIX Event, the 2018 major event
 * Treehouse of Horror XXX Event, the 2019 multi-event
 * Treehouse of Horror XXXI Event, the 2020 multi-event
 * Treehouse of Horror XXXII Event, the 2021 multi-event