2018 US Open – Men's doubles

Mike Bryan and Jack Sock won their second consecutive Grand Slam as a pair, defeating Łukasz Kubot and Marcelo Melo in the final, 6–3, 6–1. Mike Bryan won an all-time record 18th grand slam men's doubles title, and with a 6th US Open men's doubles title, he equals Richard Sears and Holcombe Ward.

Bryan retained the ATP number 1 doubles ranking at the conclusion of this tournament, after fellow contenders Oliver Marach and John Peers both lost in the early rounds. Sock reached a career-high ranking of no. 2 after this tournament.

Jean-Julien Rojer and Horia Tecău were the defending champions, but lost in the second round to Radu Albot and Malek Jaziri. Albot and Jaziri became the first Moldovan and Tunisian respectively to reach the semifinals at a Grand Slam.

Seeds
• 🇦🇹 Oliver Marach / Mate Pavić (first round)

• 🇫🇮 Henri Kontinen / 🇦🇺 John Peers (second round)

• 🇺🇸 Mike Bryan / 🇺🇸 Jack Sock (champions)

• 🇬🇧 Jamie Murray / 🇧🇷 Bruno Soares (quarterfinals)

• 🇨🇴 Juan Sebastián Cabal / 🇨🇴 Robert Farah (semifinals)

•  Jean-Julien Rojer / 🇷🇴 Horia Tecău (second round)

• 🇵🇱 Łukasz Kubot / 🇧🇷 Marcelo Melo (final)

•  Raven Klaasen / 🇳🇿 Michael Venus (second round)

• 🇫🇷 Pierre-Hugues Herbert / 🇫🇷 Nicolas Mahut (third round)

• 🇪🇸 Feliciano López / 🇪🇸 Marc López (second round)

•  Ivan Dodig / 🇪🇸 Marcel Granollers (third round)

• 🇯🇵 Ben McLachlan / 🇩🇪 Jan-Lennard Struff (first round)

•  Julio Peralta / 🇦🇷 Horacio Zeballos (second round)

•  Robin Haase /  Matwé Middelkoop (third round)

• 🇮🇳 Rohan Bopanna / 🇫🇷 Édouard Roger-Vasselin (quarterfinals)

• 🇬🇧 Dominic Inglot /  Franko Škugor (third round)