Gonzalo Villanueva (born 13 January 1995) is an Argentine professional tennis player. He has a career-high ATP singles ranking of No. 268 achieved on 10 October 2022 and a best doubles ranking of No. 155 achieved on 16 March 2026.

Career Villanueva made his ATP main draw debut at the 2022 Los Cabos Open after entering the singles main draw as a lucky loser losing to Rinky Hijikata in qualifying. He won his maiden ATP Challenger title at the 2024 Challenger Tucumán in doubles partnering Luís Britto.Main draw

ATP Challenger and ITF Tour finals

Singles: 20 (8 titles, 12 runner-ups) LegendATP Challenger Tour (0–1)ITF Futures/WTT (8–11)Finals by surfaceHard (0–1)Clay (8–11)

ResultW–LDateTournamentTierSurfaceOpponentScoreLoss0–1F8 Buenos Aires, ArgentinaFuturesClay Daniel Dutra da Silva 6–4, 2–6, 3–6Loss0–2F3 Cali, ColombiaFuturesClay Roberto Quiroz3–6, 1–6Loss0–3F28 San Sebastián, SpainFuturesClay Jaume Munar 6–3, 5–7, 3–6Loss0–4F30 Madrid, SpainFuturesClay Bernabé Zapata Miralles2–6, 1–6Loss0–5F2 São Paulo, BrasilFuturesClay Rafael Matos1–6, 3–6Loss0–6F3 Córdoba, ArgentinaFuturesClay Facundo Argüello4–6, 6–7(5–7)Win1–6F6 Buenos Aires, ArgentinaFuturesClay Francisco Cerúndolo6–0 6–3Win2–6F1 Trujillo, PeruFuturesClay Arklon Huertas del Pino6–0, 6–3Loss2–7F2 Lima, PeruFuturesClay Bastian Malla6–7(1–7), 4–6Win3–7M15 Gubbio, ItalyWTTClay Francesco Passaro7–5, 6–2 Win4–7M15 Eupen, BelgiumWTTClay Michael Geerts6–4, 6–1Win5–7M15 Lambare, ParaguayWTTClay João Lucas Reis da Silva6–1, 6–3Win6–7M15 Buenos Aires, ArgentinaWTTClay Maximiliano Estévez6–4, 4–6, 6–1Loss6–8M25 Rosario, ArgentinaWTTClay Santiago Rodriguez Taverna 6–4, 3–6, 3–6Win7–8M25 Rosario, ArgentinaWTTClay Franco Emanuel Egea3–6, 6–4, 6–1Win8–8M25 Concepción, ChileWTTClay Facundo Mena6–3, 6–4Loss8–9M25 Coquimbo, ChileWTTClay Pedro Boscardin Dias3–6, 1–6Loss8–10M25 Trelew, ArgentinaWTTHard Samir Banerjee1–6, 2–6Loss8–11M25 Villa María, ArgentinaWTTClay Juan Bautista Torres2–6, 5–7Loss8–12Piracicaba Challenger, BrazilChallengerClay Thiago Seyboth Wild2–6, 2–6

Doubles: 13 (10 titles, 3 runner-ups) LegendATP Challenger Tour (6–3)ITF Futures/WTT (4–0)Finals by surfaceHard (1–0)Clay (9–3)

ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreWin1–0Tucumán, ArgentinaChallengerClay Luís Britto Patrick Harper David Stevenson6–3, 6–2Win2–0Tigre, ArgentinaChallengerClay Mariano Kestelboim Luís Britto Franco Roncadelli6–2, 7–5Win3–0Campinas, BrazilChallengerClay Mariano Kestelboim Seita Watanabe Takeru Yuzuki6–2, 7–6(7–5)Loss3–1Porto Alegre, BrazilChallengerClay Lautaro Midón Juan Carlos Prado Ángelo Federico Zeballos5–7, 5–7Win4–1Santos, BrazilChallengerClay Pedro Boscardin Dias Boris Arias Federico Zeballos6–2, 6–7(3–7), [10–7]Win5–1Santa Fe, ArgentinaChallengerClay Mariano Kestelboim Santiago de la Fuente Genaro Alberto Olivieri6–1, 2–6, [11–9]Win6–1Santa Cruz de la Sierra, BoliviaChallengerClay Mariano Kestelboim Boris Arias Federico Zeballos6–3, 6–2Loss6–2Villa María, ArgentinaChallengerClay Daniel Dutra da Silva Guillermo Durán Mariano Kestelboim4–6, 2–6Loss6–3Tigre, ArgentinaChallengerClay Santiago Rodríguez Taverna Mariano Kestelboim Juan Carlos Prado Ángelo4–6, 7–5, [7–10]Win1–0ITF Buenos Aires, ArgentinaFuturesClay Matías Franco Descotte Juan Manuel Matute Mauricio Pérez Mota4–6, 6–4, [10–1]Win2–0ITF Rosario, ArgentinaFuturesClay Tomás Lipovšek Puches Maximiliano Estévez Valentín Florez6–3, 6–7(5–7), [10–6]Win3–0ITF Gubbio, ItalyWTTHard Kirill Kivattsev Mattia Frinzi Giorgio Portaluri6–1, 6–4Win4–0ITF Villa Maria, ArgentinaWTTClay Mateo Nicolás Martínez Matheus Pucinelli de Almeida João Lucas Reis da Silva6–3, 6–3

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