Odo of Porhoët

Odo, Eudo or Eudes of Porhoët may refer to:


 * Odo I, Viscount of Porhoët (d. c. 1092)
 * Odo II, Viscount of Porhoët (d. c. 1180), also duke of Brittany (1148–1156)
 * Odo III, Viscount of Porhoët (d. 1231)