Colin "Col" Marius Greenwood (25 January 1936 – 3 October 1998) was a South African dual-code international rugby union and professional rugby league footballer who played in the 1960s, and coached rugby league in the 1960s. He played representative level rugby union (RU) for South Africa, at provincial level for Western Province, and at club level for Noordelikes (Northerns), as a centre, i.e. number 12 or 13,^[1] and representative level rugby league (RL) for South Africa and Rugby League XIII, and at club level for Wakefield Trinity (Heritage No. 674), North Sydney Bears and Canterbury-Bankstown Bulldogs, as a wing, stand-off, or lock, i.e. number 2 or 5, 6, or 13,^[2] and coached club level rugby league (RL) for North Sydney Bears.^[3]

Col Greenwood was born in Cape Town, Western Cape, South Africa, and he died aged 62 in George, Western Cape, South Africa.