Nicolás Mejía (Spanish pronunciation: [nikoˈlas meˈxi.a];^[a] born 11 February 2000) is a Colombian tennis player. He has a career high ATP singles ranking of world No. 190 achieved on 17 March 2025 and a doubles ranking of No. 153 achieved on 7 November 2022. He is currently the No. 2 Colombian tennis player.^[1]

Mejía represents Colombia at the Davis Cup, where he has a W/L record of 3–9.

Mejía received wildcards for the qualifying competition at the 2024 Los Cabos Open and also for the 2024 Abierto Mexicano Telcel in Acapulco.

After coming through qualifying, Mejía won his first Challenger singles title in the 2024 San Luis Open Challenger in San Luis Potosí, Mexico, defeating fellow qualifier Matías Soto in the final. He became the first Colombian Challenger champion since Daniel Elahi Galán in 2022.^[2] He rose 100 spots back to World No. 344 in the singles rankings on 1 April 2024.

Following a final showing at the 2024 Morelos Open also as a qualifier, defeating third seed Zachary Svajda, Dominik Palán, wildcard Vasek Pospisil^[3] and sixth seed Maxime Cressy, he returned to the top 300 on 15 April 2024.

Ranked No. 235, Mejía entered the main draw of the 2024 Winston-Salem Open as a lucky loser but lost to Corentin Moutet.^[4]

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Apr 2021	Salinas, Ecuador	Challenger	Hard	Nicolás Jarry	6–7(7–9), 1–6
Loss	0–2	Jun 2021	Orlando, USA	Challenger	Hard	Christopher Eubanks	6–2, 6–7(3–7), 4–6
Win	1–2	Mar 2024	San Luis, Mexico	Challenger	Clay	Matías Soto	6–1, 5–7, 6–2
Loss	1–3	Apr 2024	Morelos, Mexico	Challenger	Hard	Giovanni Mpetshi Perricard	5–7, 5–7

Result	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	Jan 2022	Forlì, Italy	Challenger	Hard (i)	Alexander Ritschard	Sadio Doumbia Fabien Reboul	2–6, 3–6
Loss	Apr 2022	Cuernavaca, Mexico	Challenger	Hard	Roberto Quiroz	JC Aragone Adrián Menéndez Maceiras	6–7(4–7), 2-6
Win	May 2022	Coquimbo, Chile	Challenger	Clay	Guillermo Durán	Diego Hidalgo Cristian Rodríguez	6–4, 1–6, [10–7]
Win	Jul 2022	Bogotá, Colombia	Challenger	Clay	Andrés Urrea	Ignacio Monzón Gonzalo Villanueva	6–3, 6–4

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Win	1–0	Nov 2018	Niceville, USA F30	Futures	Clay	Strong Kirchheimer	6–4, 6–4
Loss	1–1	Apr 2019	Bucaramanga, Colombia	M15	Clay	Mauricio Echazú	6–3, 3–6, 4–6
Win	2–1	Jul 2019	Cancún, Mexico	M15	Hard	Nicolas Moreno de Alboran	6–2, 7–5
Win	3–1	Jul 2019	Cancún, México	M15	Hard	Gage Brymer	6–1, 6–2
Win	5–4	May 2024	Anapoima, Colombia	M25	Clay	Kiranpal Pannu	6–2, 6–2

Result	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	Mar 2016	Boca Raton, United States	Future	Clay	José Daniel Bendeck	Alejandro Gómez Roberto Quiroz	3–6, 6–7(2–7)
Loss	Jun 2016	Cartagena, Colombia	Future	Clay	José Daniel Bendeck	Facundo Mena Jorge Montero	4–6, 6–7(5–7)
Win	Feb 2019	Weston, United States	M15	Clay	Sebastian Korda	Harrison Adams Jordi Arconada	6–3, 4–6, [11–9]
Loss	Mar 2019	Antalya, Turkey	M15	Clay	Sebastian Korda	Alexandru Ghilea Alexandru Jecan	6–2, 6–2
Loss	Mar 2019	Antalya, Turkey	M15	Clay	Sebastian Korda	Arklon Huertas Conner Huertas	6–7(3–7), 6–4, [10–6]
Win	Jun 2019	Cancún, Mexico	M15	Hard	Axel Geller	Jody Maginley Justin Roberts	6–7(5–7), 6–1, [10–5]
Win	Jul 2019	Cancún, Mexico	M15	Hard	Jack Draper	Aron Pierce Noah Schachter	4–6, 7–6(7–2), [10–5]
Win	Aug 2019	Portoviejo, Ecuador	M25	Clay	Jose Daniel Bendeck	Juan P. Ficovich Agustin Riquelme	6–7(4–7), 6–3, [10–7]
Loss	Feb 2021	Antalya, Turkey	M15	Clay	Pedro Vives Marcos	Agustín Velotti Matias Zukas	6–2, 5–7, [5–10]
Loss	Feb 2021	Antalya, Turkey	M15	Clay	Pedro Vives Marcos	Pedro Cachín Genaro A. Olivieri	7–5, 1–6, [12–14]
Win	Mar 2024	Santo Domingo, Dominican Republic	M25	Hard	Andrés Urrea	Charles Broom David Stevenson	7–6(7–2), 3–6, [10–7]
Win	Mar 2024	Santo Domingo, Dominican Republic	M25	Hard	Andrés Urrea	Trey Hilderbrand Pranav Kumar	6–7(5–7), 6-4, [10–5]

Result	Year	Tournament	Surface	Partner	Opponents	Score
Runner-up	2018	Wimbledon	Grass	Ondřej Štyler	Otto Virtanen Yankı Erel	6–7(5–7), 4–6

Mejía record against players who have been ranked in the top 10, with those who are active in boldface. Only ATP Tour main draw matches are considered:

Player	Record	Win %	Hard	Clay	Grass	Last Match
Number 4 ranked players
Kei Nishikori	0–1	0%	0–1	–	–	Lost (4–6, 4–6) at 2024 Davis Cup World Group I
Number 8 ranked players
Cameron Norrie	0–1	0%	–	0–1	–	Lost (4–6, 4–6) at 2023 Davis Cup
Total	0–2	0%	0–1 (0%)	0–1 (0%)	0–0 ( – )	* Statistics correct as of 11 January 2025.

• Nicolás Mejía at the Association of Tennis Professionals
• Nicolás Mejía at the International Tennis Federation
• Nicolás Mejía at the Davis Cup