The Kingdom of Tahiti or the Tahitian Kingdom was a Polynesian monarchy founded by paramount chief Pōmare I, who, with the aid of British missionaries and traders, and European weaponry, unified the islands of Tahiti, Moʻorea, Teti‘aroa, and Mehetiʻa. The kingdom eventually annexed the Tuamotus, and the Austral Islands.

Tahiti is the largest island of the Windward group of the Society Islands in French Polynesia. It is located in the central part of the Pacific Ocean and the nearest continental landmass is Australia. Divided into two parts, Tahiti Nui and Tahiti Iti, the island was formed from volcanic activity; it is high and mountainous with surrounding coral reefs. Its population was 189,517 in 2017, making it by far the most populous island in French Polynesia and accounting for 68.7% of its total population; the 2022 Census recorded a population of 191,779.