Maximus Johnity Ongkili (born 26 October 1953) is a Malaysian politician who has served as Chairman of the Energy Commission of Sabah (ECOS) since February 2023.

He is married with two children (currently widowed since 2018 and has since remarried as of 2023) and holds a Doctor of Philosophy in Agricultural Economics, conferred by Australia's La Trobe University.

[3] He is a Christian belonging to the Borneo Evangelical Church (but formerly a Roman Catholic from birth until his adulthood, when he was deemed to be born again by converting to Protestantism via the said denomination).

Ongkili entered Parliament in the 1995 general election (at the time, the Kota Marudu seat was named Bandau).

Ongkili was also a member of the Sabah State Legislative Assembly until the 2008 election, when he stood aside from his Tandek seat.