Khairul Khalil bin Ja'afari (born 28 February 1975) is the eldest son and second child of Pengiran Syed Haji Ja'afari bin Pengiran Syed Haji Mashor and Hajah Dayang Sarabanun bini Haji Abdi Manaf.
Khairul Khalil bin Ja'afari (born 28 February 1975) is the firstborn son and second offspring of Pengiran Syed Haji Ja'afari and Hajah Dayang Sarabanun