The Holy See and the Sultanate of Oman established full diplomatic relations on 23 February 2023.

[1] Oman is a predominantly Muslim country.

[2] At the time formal relations were established, Oman had four Catholic parishes and 12 priests.

[2] With the establishment of relations with Oman, the Holy See has relations with every country on the Arabian Peninsula other than Saudi Arabia.

[2] The Apostolic Nunciature to the Sultanate of Oman is the ecclesiastical office of the Catholic Church and the diplomatic post of the Holy See in Oman established in February 2023.