Otan

OTAN most commonly refers to the French, Portuguese and Spanish acronym of NATO, an intergovernmental military alliance.

Otan or OTAN may refer to:


 * Otan, political party of Kazakhstan, formed into Nur Otan in 2006 and into Amanat in 2022
 * Otan Ayegbaju, or Otan, a town in Nigeria
 * Autan, or Otan, a village in Syria