See main article: 2014 US Open (tennis).
Marin Čilić defeated Kei Nishikori in the final, 6–3, 6–3, 6–3 to win the men's singles tennis title at the 2014 US Open.[1] It was his first major title. Čilić became the second Croatian to win a major men's singles title after his coach Goran Ivanišević at the 2001 Wimbledon Championships.[2]
Rafael Nadal was the reigning champion, but withdrew before the tournament due to a right wrist injury.[3]
Nishikori became the first Japanese in the Open Era to reach a major semifinal and final, and the first since Jiro Sato at the 1933 French Championships.
The finalists defeated Roger Federer and Novak Djokovic in their respective semifinals, guaranteeing a new major champion, the first major final with a guaranteed first-time champion since the 2008 Australian Open and the first major final with two first-time finalists since the 2005 French Open. Nishikori and Čilić were also the two lowest-ranked seeds to reach the US Open final since 2002. Between the 2005 Australian Open and 2020 US Open, this was the only major final not to feature a member of the Big Four.
This marked the first US Open appearance for future champion Dominic Thiem; he lost in the fourth round to Tomáš Berdych.
See main article: 2014 US Open – Men's singles qualifying.