Adjohoun [a.dʒo.un] or Adjohon [a.dʒɔ.ɔ̃] is a town, arrondissement, and commune in Ouémé Department, Benin.

The commune covers an area of 112 square kilometres and as of 2002 had a population of 60,112 people.

These are Adjohoun, Awonou, Azowlissé, Dèmè, Gangban, Kogé and Togbota.

The City Council is composed of 15 advisers who elect the mayor, who is currently Leon Bokova.

[citation needed] Crops grown include maize, rice, potatoes, sesame, tomatoes, oranges and bananas.