Jonny O'Mara (born 2 March 1995) is a British tennis player. He has a career high ATP doubles ranking of 44 achieved on 20 May 2019. He also has a career high ATP singles ranking of World No. 489 achieved on 10 April 2017.

O'Mara won the Master'U BNP Paribas, the world event of university tennis, with Great-Britain in December 2017.^{[citation needed]} He made his ATP main draw debut at the 2017 Aegon International Eastbourne in the doubles draw partnering Scott Clayton.^{[citation needed]}

He made his Grand Slam debut at the 2017 Wimbledon Championships after receiving a wildcard to the doubles main draw with Clayton.^[1]

In June 2018, O'Mara claimed his maiden ATP Tour title with Luke Bambridge in the men's doubles final at Valley International in Eastbourne.^[2]

At the 2021 Sofia Open he won his third ATP 250 title partnering Ken Skupski.^[3]

With compatriot Liam Broady he won the doubles at the 2023 Surbiton Trophy^[4] and reached the final at the 2023 Nottingham Open.^[5]

Partnering with Olivia Nicholls at the 2023 Wimbledon Championships, O'Mara reached the semi-finals in the mixed doubles, losing out to eventual champions Mate Pavić and Lyudmyla Kichenok.^[6]

Current through the 2023 Wimbledon Championships.

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1–0	Jun 2018	Eastbourne International, United Kingdom	250 Series	Grass	Luke Bambridge	Ken Skupski Neal Skupski	7–5, 6–4
Win	2–0	Oct 2018	Stockholm Open, Sweden	250 Series	Hard (i)	Luke Bambridge	Marcus Daniell Wesley Koolhof	7–5, 7–6(10–8)
Loss	2–1	Jan 2019	Maharashtra Open, India	250 Series	Hard	Luke Bambridge	Rohan Bopanna Divij Sharan	3–6, 4–6
Loss	2–2	Mar 2019	Brasil Open, Brazil	250 Series	Clay (i)	Luke Bambridge	Federico Delbonis Máximo González	4–6, 3–6
Loss	2–3	May 2019	Estoril Open, Portugal	250 Series	Clay	Luke Bambridge	Jérémy Chardy Fabrice Martin	5–7, 6–7(3–7)
Loss	2–4	Feb 2020	Chile Open, Chile	250 Series	Clay	Marcelo Arévalo	Roberto Carballés Baena Alejandro Davidovich Fokina	6–7(3–7), 1–6
Win	3–4	Oct 2021	Sofia Open, Bulgaria	250 Series	Hard (i)	Ken Skupski	Oliver Marach Philipp Oswald	6–3, 6–4

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Apr 2016	Greece F5, Heraklion	Futures	Hard	Lloyd Glasspool	3–6, 6–4, 6–7(3–7)
Win	1–1	Jul 2016	Portugal F10, Castelo Branco	Futures	Hard	Julian Ocleppo	3–6, 7–5, 7–6(7–2)
Loss	1–2	Dec 2016	Qatar F4, Doha	Futures	Hard	Daniel Altmaier	5–7, 3–6

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	May 2013	Great Britain F10, Edinburgh	Futures	Clay	Richard Gabb	Matthew Short Marcus Willis	6–4, 4–6, [8–10]
Loss	0–2	Nov 2013	Great Britain F23, Edgbaston	Futures	Hard (i)	Scott Clayton	Luke Bambridge George Morgan	5–7, 6–4, [7–10]
Loss	0–3	Feb 2014	Turkey F4, Antalya	Futures	Hard	Richard Gabb	Romain Arneodo Enzo Couacaud	3–6, 0–6
Win	1–3	May 2014	Great Britain F10, Edinburgh	Futures	Clay	Marcus Willis	Maverick Banes Gavin van Peperzeel	7–6(7–3), 6–1
Win	2–3	May 2014	Great Britain F11, Newcastle	Futures	Clay	Marcus Willis	Maverick Banes Gavin van Peperzeel	7–6(10–8), 6–1
Win	3–3	Sep 2014	Croatia F17, Bol	Futures	Clay	Christopher O'Connell	Blaž Bizjak Peter Mick	6–2, 6–4
Loss	3–4	Nov 2014	Great Britain F9, Bath	Futures	Hard (i)	Richard Gabb	David O'Hare Joe Salisbury	1–6, 2–6
Win	4–4	Oct 2015	Egypt F33, Sharm El Sheikh	Futures	Hard	Scott Clayton	Mohamed Safwat Issam Haitham Taweel	6–2, 6–4
Win	5–4	Oct 2015	Egypt F34, Sharm El Sheikh	Futures	Hard	Scott Clayton	Karol Drzewiecki Maciej Smola	7–6(10–8), 6–1
Loss	5–5	Feb 2016	Great Britain F1, Glasgow	Futures	Hard (i)	Scott Clayton	David Rice Daniel Smethurst	1–6, 4–6
Win	6–5	Mar 2016	Portugal F2, Faro	Futures	Hard	Scott Clayton	Erik Crepaldi André Gaspar Murta	6–2, 7–5
Loss	6–6	May 2016	Portugal F5, Lisbon	Futures	Hard	Scott Clayton	Nuno Deus João Domingues	6–4, 5–7, [7–10]
Win	7–6	Jul 2016	Portugal F9, Idanha-a-Nova	Futures	Hard	Scott Clayton	Nuno Deus Jorge Hernando Ruano	6–2, 6–4
Loss	7–7	Jul 2016	Portugal F10, Castelo Branco	Futures	Hard	Scott Clayton	Felipe Cunha e Silva Fred Gil	6–1, 4–6, [10–12]
Loss	7–8	Aug 2016	Belarus F2, Minsk	Futures	Hard	Scott Clayton	Yaraslav Shyla Dzmitry Zhyrmont	5–7, 6–7(1–7)
Win	8–8	Aug 2016	Belarus F3, Minsk	Futures	Hard	Scott Clayton	George Tsivadze Anıl Yüksel	6–4, 3–6, [13–11]
Win	9–8	Oct 2016	Great Britain F4, Loughborough	Futures	Hard (i)	Scott Clayton	Billy Harris Mateusz Terczynski	6–3, 6–2
Win	10–8	Nov 2016	Great Britain F5, Sheffield	Futures	Hard (i)	Scott Clayton	Alastair Gray Ewan Moore	6–4, 6–4
Win	11–8	Nov 2016	Great Britain F6, Barnstaple	Futures	Hard (i)	Scott Clayton	Hunter Callahan Nicholas S. Hu	6–4, 7–5
Win	12–8	Dec 2016	Qatar F4, Doha	Futures	Hard	James Marsalek	Lenny Hampel Sebastian Ofner	6–4, 6–4
Win	13–8	Dec 2016	Qatar F5, Doha	Futures	Hard	Scott Clayton	Baptiste Crepatte Quentin Folliot	6–0, 6–0
Win	14–8	Dec 2016	Qatar F6, Doha	Futures	Hard	Scott Clayton	Edoardo Eremin Julian Ocleppo	7–6(7–0), 6–4
Win	15–8	Apr 2017	France F8, La Grande-Motte	Futures	Hard	Scott Clayton	Yannick Jankovits Jonathan Kanar	6–4, 6–2
Win	16–8	Jul 2017	Ireland F1, Dublin	Futures	Carpet	Scott Clayton	Peter Bothwell Lloyd Glasspool	6–1, 6–3
Win	17–8	Sep 2017	İzmir, Turkey	Challenger	Hard	Scott Clayton	Denys Molchanov Sergiy Stakhovsky	Walkover
Win	18–8	Feb 2018	Bergamo, Italy	Challenger	Hard (i)	Scott Clayton	Laurynas Grigelis Alessandro Motti	5–7, 6–3, [15–13]
Loss	18–9	Apr 2018	Mexico City, Mexico	Challenger	Clay	Luke Bambridge	Yannick Hanfmann Kevin Krawietz	2–6, 6–7(3–7)
Loss	18–10	May 2018	Glasgow, United Kingdom	Challenger	Hard (i)	Scott Clayton	Gerard Granollers Guillermo Olaso	1–6, 5–7
Loss	18–11	May 2018	Loughborough, United Kingdom	Challenger	Hard (i)	Luke Bambridge	Frederik Nielsen Joe Salisbury	6–3, 3–6, [4–10]
Win	19–11	Jun 2018	Surbiton, United Kingdom	Challenger	Grass	Luke Bambridge	Ken Skupski Neal Skupski	7–6(13–11), 4–6, [10–7]
Loss	19–12	Aug 2018	Aptos, United States	Challenger	Hard	Joe Salisbury	Thanasi Kokkinakis Matt Reid	2–6, 6–4, [8–10]
Win	20–12	Sep 2018	Orléans, France	Challenger	Hard (i)	Luke Bambridge	Yannick Maden Tristan-Samuel Weissborn	6–2, 6–4
Loss	20–13	Nov 2018	Eckental, Germany	Challenger	Carpet (i)	Hugo Nys	Kevin Krawietz Andreas Mies	1–6, 4–6
Loss	20–14	Apr 2019	Sarasota, United States	Challenger	Clay	Luke Bambridge	Martín Cuevas Paolo Lorenzi	6–7(5–7), 6–7(6–8)
Win	21–14	Aug 2019	Vancouver, Canada	Challenger	Hard	Robert Lindstedt	Treat Huey Adil Shamasdin	6–2, 7–5
Win	22–14	Oct 2019	Mouilleron-le-Captif, France	Challenger	Hard (i)	Ken Skupski	Sander Arends David Pel	6–1, 6–4
Loss	22–15	Jan 2020	Bendigo Challenger, Australia	Challenger	Hard	Marcelo Arévalo	Nikola Čačić Denys Molchanov	6–7(3–7), 4–6
Win	23–15	Nov 2021	Eckental, Germany	Challenger	Carpet (i)	Roman Jebavý	Ruben Bemelmans Daniel Masur	6–4, 7–5
Win	24–15	Jun 2022	Nottingham, United Kingdom	Challenger	Grass	Ken Skupski	Julian Cash Henry Patten	3–6, 6–2, [16–14]
Win	25–15	Jun 2023	Surbiton, United Kingdom (2)	Challenger	Grass	Liam Broady	Alexei Popyrin Aleksandar Vukic	6–4, 5–7, [10–8]
Loss	25–16	Jun 2023	Nottingham, United Kingdom	Challenger	Grass	Liam Broady	Johannus Monday Jacob Fearnley	3–6, 7–6, [7–10]

O'Mara enters his second season with World TeamTennis in 2020, after making his debut with the San Diego Aviators in 2019. It was announced he will be joining the San Diego Aviators during the 2020 WTT season set to begin July 12.^[7]

• Jonny O'Mara at the Association of Tennis Professionals
• Jonny O'Mara at the International Tennis Federation