Gazetteer of the Persian Gulf, Oman and Central Arabia

The Gazetteer of the Persian Gulf, Oman and Central Arabia (nicknamed Lorimer) is a two-volume encyclopedia compiled by John Gordon Lorimer. The Gazetteer was published in secret by the British government in India in 1908 and 1915 and it served as a handbook for British diplomats in the Arabian Peninsula and Persia.

The work was declassified in 1955 under the fifty-year rule, and was widely praised for its extensive coverage of the region's history and geography. It is considered to be "the most important single source of historical material on the Gulf States and Saudi Arabia" from the 17th to early 20th century.