Peter Bryan Wells (born May 12, 1963[1]) is an American prelate of the Catholic Church who has spent most of his career in the diplomatic service of the Holy See.

[6] Wells entered the diplomatic service of the Holy See on July 1, 1999, working in the apostolic nunciature in Nigeria and, beginning in 2002, in the Section for General Affairs of the Secretariat of State.

[8] Speaking about his work as assessor of general affairs, Wells said that the role of papal diplomacy was to allow Pope Francis and his representatives to "have the ability to act freely in the world" and not be "impeded in their ministry", especially in reaching out to the most marginalized.

[9] Pope Francis named Wells secretary of the five-member Pontifical Commission that was responsible for investigating the Institute for the Works of Religion in 2013.

[9] On February 9, 2016 Wells was appointed apostolic nuncio to South Africa and Botswana and titular archbishop of Marcianopolis.