The 2018 2000 Guineas Stakes was the 210th running of the 2000 Guineas Stakes horse race. It was run over one mile on the Rowley Mile at Newmarket Racecourse on 5 May 2018, a hot and sunny day. The winner was the Japanese bred Saxon Warrior, trained by Aidan O'Brien and ridden by his son Donnacha O'Brien. Tip Two Win was in second place a length and a half behind and the favourite, Masar, was in third place.