Ontoros Antanom, also known as Antanum or Antanom (1885–1915) was a Murut warrior from North Borneo who led a rebellion against the North Borneo Chartered Company (NBCC). Claiming to have supernatural powers, he united several Murut chiefs from Keningau, Tenom, Pensiangan and Rundum in opposing the policies of the NBCC in North Borneo and launched the Rundum Rebellion in 1915. The rebellion was immediately suppressed by the company, and the conflict led to a heavy death toll amongst the Murut.[1]