The 1993 NSWRL season (known as the 1993 Winfield Cup Premiership for sponsorship reasons) was the eighty-sixth season of professional rugby league football in Australia. The New South Wales Rugby League's sixteen teams competed for the J. J. Giltinan Shield during the season, which culminated in a replay of the previous year's grand final for the Winfield Cup trophy between the Brisbane Broncos and St. George Dragons. As Sydney celebrated winning the 2000 Olympic Games, Brisbane spoiled the party by retaining the NSWRL premiership.