Houin
Arrondissement
Country	Benin
Department	Mono Department
Commune	Lokossa
Population  (2002)
• Total	6,362
Time zone	UTC+1 (WAT)

Houin is an arrondissement in the Mono department of Benin. It is an administrative division under the jurisdiction of the commune of Lokossa. According to the population census conducted by the Institut National de la Statistique Benin on February 15, 2002, the arrondissement had a total population of 6362.^[1]

6°37′48″N 1°42′58″E / 6.6300°N 1.7160°E / 6.6300; 1.7160