| Men's doubles | |
|---|---|
| 2018 Nottingham Open | |
| Champions |  Frederik Nielsen  Joe Salisbury |
| Runners-up |  Austin Krajicek  Jeevan Nedunchezhiyan |
| Final score | 7–6(7–5), 6–1 |
Ken and Neal Skupski were the defending champions but lost in the semifinals to Frederik Nielsen and Joe Salisbury.
Nielsen and Salisbury won the title after defeating Austin Krajicek and Jeevan Nedunchezhiyan 7–6(7–5), 6–1 in the final.
Ken Skupski / Neal Skupski (semifinals)
Matt Reid / 
Adil Shamasdin (semifinals, withdrew) Luke Bambridge / Jonny O'Mara (first round) Austin Krajicek / Jeevan Nedunchezhiyan (final)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | K Skupski N Skupski | 6 | 6 | ||||||||||||||||||||||||
 J Jung E King | 3 | 3 | 1 | K Skupski N Skupski | 6 | 6 | |||||||||||||||||||||
 M Moraing P Polansky | 77 | 77 | M Moraing P Polansky | 3 | 4 | ||||||||||||||||||||||
| WC | J Clarke M Willis | 64 | 65 | 1 | K Skupski N Skupski | 6 | 64 | [13] | |||||||||||||||||||
| 3 | L Bambridge J O'Mara | 4 | 0 | F Nielsen J Salisbury | 2 | 77 | [15] | ||||||||||||||||||||
| F Nielsen J Salisbury | 6 | 6 | F Nielsen J Salisbury | 6 | 5 | [10] | |||||||||||||||||||||
| PR |  J Erlich  J Melzer | 3 | 6 | [10] | PR | J Erlich J Melzer | 4 | 7 | [4] | ||||||||||||||||||
 A Bublik M Mmoh | 6 | 4 | [1] | F Nielsen J Salisbury | 77 | 6 | |||||||||||||||||||||
| WC | L Broady S Clayton | 4 | 5 | 4 | A Krajicek J Nedunchezhiyan | 65 | 1 | ||||||||||||||||||||
 A Menéndez Maceiras  S Stakhovsky | 6 | 7 | A Menéndez Maceiras S Stakhovsky | 5 | 4 | ||||||||||||||||||||||
| B Klein R Ramanathan | 6 | 1 | [8] | 4 | A Krajicek J Nedunchezhiyan | 7 | 6 | ||||||||||||||||||||
| 4 | A Krajicek J Nedunchezhiyan | 3 | 6 | [10] | 4 | A Krajicek J Nedunchezhiyan | w/o | ||||||||||||||||||||
M Granollers  I Ivashka | 7 | 6 | 2 | M Reid A Shamasdin | |||||||||||||||||||||||
| WC | A McHugh C Norrie | 5 | 4 | M Granollers I Ivashka | 3 | 4 | |||||||||||||||||||||
 T Fabbiano M Polmans | 5 | 4 | 2 | M Reid A Shamasdin | 6 | 6 | |||||||||||||||||||||
| 2 | M Reid A Shamasdin | 7 | 6 | ||||||||||||||||||||||||
Sanchai Ratiwatana and Sonchat Ratiwatana were the defending champions, but decided to compete at the ATP Challenger Guangzhou instead.
Henri Kontinen and Konstantin Kravchuk won the title, defeating Pierre-Hugues Herbert and Albano Olivetti in the final, 6–4, 6–7(3–7), [10–7].
Austin Krajicek and Tennys Sandgren were the current champions, but did not compete this year.
Bob and Mike Bryan were the defending champions, but chose not to participate this year.
Jason Jung and Dennis Novikov were the defending champions but only Novikov chose to defend his title, partnering Julio Peralta. Novikov lost in the semifinals to Austin Krajicek and Jackson Withrow.
This was the first edition of the men's tournament.
David O'Hare and Joe Salisbury were the defending champions but only Salisbury chose to defend his title, partnering Leander Paes. Salisbury lost in the final to Jeevan Nedunchezhiyan and Christopher Rungkat.
This was the first edition of the tournament.
Andre Begemann and Frederik Nielsen were the defending champions but chose not to defend their title.
Scott Lipsky and Jürgen Melzer were the defending champions but only Lipsky chose to defend his title, partnering Donald Young. Lipsky lost in the first round to Christian Harrison and Peter Polansky.
Sanchai Ratiwatana and Christopher Rungkat were the defending champions but only Rungkat chose to defend his title, partnering Roberto Maytín. Rungkat lost in the final to Austin Krajicek and Jeevan Nedunchezhiyan.
Jonathan Erlich and Neal Skupski were the defending champions but chose to defend their title with different partners. Erlich partnered Ruan Roelofse but lost in the first round to Thanasi Kokkinakis and Matt Reid. Skupski partnered Luke Bambridge but lost in the semifinals to Kokkinakis and Reid.
Sanchai and Sonchat Ratiwatana were the defending champions but lost in the semifinals to Hsieh Cheng-peng and Yang Tsung-hua.
Jonathan Erlich and Aisam-ul-Haq Qureshi were the defending champions but chose not to participate together. Erlich played alongside James Cerretani, but lost in the first round to Guido Pella and João Sousa. Qureshi teamed up with Santiago González and lost in the semifinals to Ivan Dodig and Mate Pavić.
Ken and Neal Skupski were the defending champions, but lost in the quarterfinals to Benjamin Bonzi and Antoine Hoang.
This was the first edition of the tournament.
Santiago González and Aisam-ul-Haq Qureshi defeated brothers Ken and Neal Skupski in the final, 3–6, 6–4, [10–6], to win the doubles tennis title at the 2019 U.S. Men's Clay Court Championships. The win earned the team their first ATP Tour title together, though it individually marked Gonzalez his 13th and Qureshi his 17th. The Skupski brothers were contending to win their second tour-level title as a team.
Ivan Dodig and Rajeev Ram were the defending champions, but Dodig chose not to participate and Ram chose to compete in Estoril instead.
Frederik Nielsen and Joe Salisbury were the defending champions but chose not to defend their title.
Austin Krajicek and Jeevan Nedunchezhiyan were the defending champions but only Nedunchezhiyan chose to defend his title, partnering Purav Raja. Nedunchezhiyan lost in the semifinals to Marcus Daniell and Leander Paes.
Mike Bryan and Jack Sock were the defending champions, but Sock could not participate due to injury. Mike Bryan played alongside his brother Bob, but lost in the third round to Nicolas Mahut and Édouard Roger-Vasselin.