Mariano "Tom" Ong (October 1938 – December 14, 2016) was a Filipino sports shooter.
Ong, born in October 1938 in Malabon,[1] competed for the Philippines at the 1972 and 1976 Summer Olympics.
[4][5] Ong died on December 14, 2016, of cardiac arrest following two hours of dialysis for his deteriorating kidneys.
A diabetic, he frequently visited a hospital beginning in June 2016.
This biographical article relating to sport shooting in the Philippines is a stub.