The Apostolic Vicariate (or Vicariate Apostolic) of Vientiane (Latin: Vicariatus Apostolicus Vientianensis; French: Vicariat apostolique de Vientiane) is a territorial jurisdiction of the Catholic Church located in northern Laos. As an apostolic vicariate, it is a pre-diocesan jurisdiction, entitled to a titular bishop, and it is exempt, i.e., not part of any ecclesiastical province and instead directly dependent on the Holy See through the Congregation for the Evangelization of Peoples.