Datuk Seri Panglima Dr. Maximus Johnity Ongkili (born 26 October 1953) is a Malaysian politician who served as Minister in the Prime Minister's Department for Sabah and Sarawak Affairs for the second term in the Barisan Nasional (BN) administration under former Prime Minister Ismail Sabri Yaakob from August 2021 to the collapse of the BN administration in November 2022, the first term in the Perikatan Nasional (PN) administration under former Prime Minister Muhyiddin Yassin from March 2020 to August 2021 as well as for National Unity and Integration in the Barisan Nasional (BN) administration under former Prime Minister Abdullah Ahmad Badawi from March 2004 to March 2008 and the Minister of Energy, Green Technology and Water in the BN administration under former Prime Minister Najib Razak