Bairiki is a village and an island now part of South Tarawa, and one time is the center of government of Kiribati. One of three post offices on Tarawa is located at Bairiki. Bairiki Island is the most southern island on the atoll of Tarawa. About nine islands are larger than Bairiki.
Bairiki includes the main administrative center of Kiribati, but the Parliament has since moved to Ambo, halfway between Bairiki and Bonriki. In the village there is a small port and near Bairiki is a center of the University of the South Pacific.