Keat Gin Ooi (Chinese: 黃吉仁; Pe̍h-ōe-jī: Ûiⁿ Kiat-jîn; pinyin: Huáng Jírén;[1] born 10 October 1959) is a Malaysian academician, historian and educator of Chinese descent who is a professor at the Modern History of Brunei/Borneo in Universiti Brunei Darussalam's Academy of Brunei Studies.
Ethnic Chinese in descent, his parents are Ai Gek, a housewife, and Ewe Boo, a manager of a rubber plantation.
[7] He was the founding editor-in-chief of the International Journal of Asia Pacific Studies (IJAPS), which is indexed by Scopus, from 2005 until his forced retirement in 2019.
His research has since covered all Borneo's regions - present-day Sabah, Sarawak, Labuan, Brunei, and Kalimantan - with a concentration on the White Rajahs, British colonial control, the Pacific War, and Japan's military presence.
Apart from Borneo, Ooi's scholarly pursuits encompass metropolitan areas such as George Town, Penang, and historiography, specifically in the context of secondary and university education.