Colin Oates (born 7 June 1983 in Harold Wood, London) is an English former Judoka.

Oates competed for Team GB in the 2012 London Olympics in the men's 66 kg judo event.

[3] After victories over Australia's Ivo dos Santos and former World Champion Khashbaataryn Tsagaanbaatar Oates was beaten in the quarter-finals by the eventual gold medallist, Lasha Shavdatuashvili from Georgia, being pinned for 15 seconds during "golden score" overtime.

[4] Colin became Commonwealth Champion in Glasgow (2014) at under 66 kg defeating Andreas Krassas in the final and two years later in 2016, he won a silver medal at the European Championships in Russia.

The 2016 victory was the fifth time that he was crowned champion of Great Britain, having previously won the British Judo Championships in 2007, 2012, 2013 and 2014.