Alu Kapa stands as a Papua New Guinean umpire with extensive experience officiating in international cricket. Born on 24 October 1959 in Hula, Central Province, he serves on the ICC Associates and Affiliates Umpire Panel. His career involves a consistent presence in high-stakes regional qualifiers and global tournaments.
He made his One Day International debut on 24 November 2017 during a clash between Papua New Guinea and Scotland. Over the next five years, he officiated a total of 5 ODIs. His involvement in the Twenty20 format began in March 2019 at the ICC World Twenty20 East Asia-Pacific Qualifier, where he stood for a match between the Philippines and Vanuatu. He has completed 9 T20I matches in that format.
Kapa also contributes to the women's game. His resume includes officiating 3 Women's One Day Internationals in 2025. Additionally, he has stood in 10 Women's Twenty20 International matches between 2019 and 2025. His background includes roles in the 2015–17 ICC World Cricket League Championship and serving as one of the eight umpires for the 2016 ICC World Cricket League Division Four tournament.