Fabrício Neis (born 15 June 1990, in Porto Alegre) is a Brazilian former tennis player.

Neis has a career high ATP singles ranking of 449 achieved on 13 May 2013. He also has a career high ATP doubles ranking of 96 achieved on 3 October 2016.

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Sep 2011	Brazil F29, Arapongas	Futures	Clay	Juan-Manuel Valverde	4–6, 3–6
Loss	0–2	Jun 2012	Brazil F14, Fortaleza	Futures	Clay	Leonardo Kirche	4–6, 7–6(7–5), 5–7
Win	1–2	Sep 2013	Brazil F8, Caxias do Sul	Futures	Clay	Pedro Sakamoto	6–2, 6–2
Loss	1–3	Oct 2013	Brazil F11, Goiânia	Futures	Clay	Daniel Dutra da Silva	3–6, 4–6
Win	2–3	Nov 2014	Brazil F15, Foz do Iguaçu	Futures	Clay	Rafael Matos	6–3, 7–5

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1–0	Jun 2009	Brazil F8, Divinópolis	Futures	Clay	Tiago Lopes	Marcelo Demoliner Rodrigo Guidolin	7–6(7–3), 7–6(7–3)
Win	2–0	Oct 2009	Brazil F21, Itu	Futures	Clay	Rafael Camilo	João Victor Costa Danilo Ferraz	6–3, 6–3
Loss	2–1	Oct 2009	Brazil F24, São Leopoldo	Futures	Clay	Juan-Pablo Amado	Gonçalo Falcão Diego Matos	6–4, 3–6, [7–10]
Win	3–1	Nov 2009	Brazil F26, Porto Alegre	Futures	Clay	Rodrigo Guidolin	Diego Matos Ricardo Siggia	6–4, 6–3
Loss	3–2	Dec 2009	Brazil F30, Foz do Iguaçu	Futures	Clay	Rafael Camilo	Alexandre Bonatto Rodrigo Guidolin	4–6, 1–6
Loss	3–3	Dec 2009	Brazil F31, Araçatuba	Futures	Clay	Rodrigo Guidolin	Diego Matos André Miele	4–6, 4–6
Loss	3–4	Apr 2010	Brazil F1, Santa Maria	Futures	Clay	Rafael Camilo	Gustavo Junqueira de Andrade Thales Turini	2–6, 1–6
Loss	3–5	Jul 2010	Brazil F15, Guarulhos	Futures	Clay	Rafael Camilo	Marcelo Demoliner Rodrigo Guidolin	4–6, 3–6
Win	4–5	Sep 2010	Brazil F22, São José do Rio Preto	Futures	Clay	Rafael Camilo	Juan-Pablo Amado Rodrigo-Antonio Grilli	6–1, 6–3
Loss	4–6	Sep 2010	Brazil F24, Recife	Futures	Clay (i)	Diego Matos	Juan-Pablo Amado Ricardo Siggia	5–7, 6–2, [9–11]
Loss	4–7	Oct 2010	Brazil F27, Salvador	Futures	Hard	Fernando Romboli	Theodoros Angelinos Diego Matos	3–6, 6–7(5–7)
Win	5–7	Oct 2010	Brazil F28, Fernandópolis	Futures	Clay	Christian Lindell	Tiago Fernandes Bruno Semenzato	w/o
Loss	5–8	Oct 2010	Brazil F29, São Leopoldo	Futures	Clay	José Pereira	Fernando Romboli Nicolas Santos	4–6, 2–6
Loss	5–9	Jul 2011	Brazil F21, Curitiba	Futures	Clay	Gabriel Vicentini Pereira	Tiago Lopes André Miele	3–6, 7–6(8–6), [9–11]
Loss	5–10	Sep 2011	Campinas, Brazil	Challenger	Clay	João Pedro Sorgi	Marcel Felder Caio Zampieri	5–7, 4–6
Win	6–10	Oct 2011	Brazil F34, Fernandópolis	Futures	Clay	Raony Carvalho	Diego Hidalgo Wilson Leite	6–2, 7–6(7–5)
Win	7–10	Feb 2012	Brazil F7, Lages	Futures	Clay	Martín Cuevas	Victor Maynard João Pedro Sorgi	6–3, 6–3
Loss	7–11	May 2012	Brazil F9, Goiânia	Futures	Clay	José Pereira	Nicolas Santos Ricardo Siggia	3–6, 6–7(6–8)
Loss	7–12	May 2012	Brazil F10, Manaus	Futures	Clay (i)	José Pereira	Guilherme Clezar Andrea Collarini	6–7(7–9), 6–3, [5–10]
Win	8–12	Jun 2012	Brazil F14, Fortaleza	Futures	Clay	André Miele	Maximiliano Estévez Leonardo Kirche	6–3, 6–7(3–7), [10–7]
Win	9–12	Jul 2012	Brazil F18, Pelotas	Futures	Clay	Thales Turini	Diego Matos José Pereira	6–4, 6–2
Win	10–12	Sep 2012	Brazil F23, Juiz de Fora	Futures	Clay	Fabiano de Paula	Guilherme Clezar Tiago Lopes	6–2, 7–5
Win	11–12	Sep 2012	Brazil F27, Belém	Futures	Hard	Guilherme Clezar	Nicolas Santos João Pedro Sorgi	6–0, 7–6(8–6)
Win	12–12	Nov 2012	Brazil F32, Porto Alegre	Futures	Clay	Thales Turini	André Miele Caio Zampieri	6–4, 7–6(7–4)
Win	13–12	Nov 2012	Brazil F30, Lins	Futures	Clay	Guilherme Clezar	Rodrigo-Antonio Grilli Diego Matos	6–4, 6–7(5–7), [10–7]
Win	14–12	Nov 2012	Brazil F34, Foz do Iguaçu	Futures	Clay	Nicolas Santos	Patricio Heras Diego Matos	6–4, 6–3
Win	15–12	Dec 2012	Brazil F35, Gramado	Futures	Hard	Nicolas Santos	Marcelo Demoliner Caio Zampieri	5–7, 6–4, [10–4]
Loss	15–13	Dec 2012	Brazil F36, Porto Alegre	Futures	Clay	Nicolas Santos	Augusto Laranja Caio Silva	6–3, 4–6, [10–12]
Loss	15–14	Apr 2013	Itajaí, Brazil	Challenger	Clay	Guilherme Clezar	James Duckworth Pierre-Hugues Herbert	5–7, 2–6
Win	16–14	Apr 2013	Chile F2, Santiago	Futures	Clay	Eduardo Dischinger	Guillermo Rivera Aránguiz Cristóbal Saavedra Corvalán	2–6, 6–2, [10–3]
Loss	16–15	Aug 2013	Brazil F3, Porto Velho	Futures	Hard	Nicolas Santos	José Pereira Alexandre Tsuchiya	6–7(5–7), 2–6
Win	17–15	Sep 2013	Brazil F8, Caxias do Sul	Futures	Clay	João Pedro Sorgi	João Menezes Evaldo Neto	6–3, 3–6, [10–6]
Win	18–15	Oct 2013	Brazil F11, Goiânia	Futures	Clay	Caio Zampieri	Charles Costa Idio Escobar	6–3, 7–6(7–5)
Win	19–15	Nov 2013	Brazil F14, Porto Alegre	Futures	Clay	Caio Zampieri	Oscar José Gutierrez Osni Junior	6–0, 6–1
Win	20–15	Dec 2013	Brazil F19, Porto Alegre	Futures	Clay	Rafael Camilo	José Pereira Alexandre Tsuchiya	6–4, 7–6(7–4)
Win	21–15	Mar 2014	Peru F1, Lima	Futures	Clay	Martín Cuevas	Fabiano de Paula Gastón-Arturo Grimolizzi	6–7(4–7), 6–2, [10–2]
Win	22–15	Jun 2014	Italy F20, Busto Arsizio	Futures	Clay	Pedro Sakamoto	Sekou Bangoura Daniel Dutra da Silva	4–6, 6–1, [10–8]
Win	23–15	Aug 2014	Brazil F7, São José do Rio Preto	Futures	Clay	Rafael Matos	Jorge Aguilar Nicolás Jarry	5–7, 6–1, [10–6]
Win	24–15	Sep 2014	Peru F5, Lima	Futures	Clay	Alexandre Tsuchiya	Augusto Laranja Nicolas Santos	1–6, 6–3, [10–5]
Win	25–15	Sep 2014	Peru F6, Lima	Futures	Clay	Alexandre Tsuchiya	Devin McCarthy Rodrigo Sánchez	7–5, 6–4
Loss	25–16	Sep 2014	Campinas, Brazil	Challenger	Clay	André Ghem	Facundo Bagnis Diego Schwartzman	6–7(4–7), 7–5, [7–10]
Win	26–16	Oct 2014	Chile F4, Santiago	Futures	Clay	José Pereira	Cristóbal Saavedra Corvalán Ricardo Urzúa Rivera	6–1, 6–1
Win	27–16	Oct 2014	Chile F5, Coquimbo	Futures	Clay	José Pereira	Víctor Núñez Hans Podlipnik Castillo	5–7, 6–2, [13–11]
Loss	27–17	Nov 2014	Brazil F11, Porto Alegre	Futures	Clay	Wilson Leite	Fernando Romboli Caio Zampieri	6–4, 3–6, [3–10]
Win	28–17	Nov 2014	Brazil F13, Santa Maria	Futures	Clay	Fabiano de Paula	Alex Blumenberg Leonardo Civita-Telles	6–1, 6–4
Win	29–17	Nov 2014	Brazil F15, Foz do Iguaçu	Futures	Clay	Fernando Romboli	Matías Rodolfo Buchhass Tomás Iriarte	7–6(7–3), 6–3
Win	30–17	Dec 2014	Brazil F16, São José dos Campos	Futures	Clay	Caio Silva	Ricardo Hocevar Tiago Lopes	6–1, 7–5
Loss	30–18	Apr 2015	Chile F3, Santiago	Futures	Clay	Nicolás Kicker	Jorge Aguilar Hans Podlipnik Castillo	6–7(4–7), 7–5, [4–10]
Win	31–18	May 2015	Croatia F10, Bol	Futures	Clay	Eduardo Dischinger	Maverick Banes Gavin van Peperzeel	6–4, 7–5
Win	32–18	May 2015	Croatia F11, Bol	Futures	Clay	Eduardo Dischinger	Maverick Banes Gavin van Peperzeel	6–2, 7–5
Win	33–18	Jun 2015	Belgium F3, Havré	Futures	Clay	Deiton Baughman	Sander Gillé Joran Vliegen	2–6, 6–4, [10–2]
Win	34–18	Jul 2015	Netherlands F3, Middelburg	Futures	Clay	Maverick Banes	Niels Lootsma Boy Westerhof	6–4, 6–4
Win	35–18	Aug 2015	Brazil F5, São José do Rio Preto	Futures	Clay	João Pedro Sorgi	André Miele Alexandre Tsuchiya	3–6, 6–4, [12–10]
Loss	35–19	Sep 2015	Campinas, Brazil	Challenger	Clay	Guilherme Clezar	Andrés Molteni Hans Podlipnik Castillo	6–3, 2–6, [0–10]
Loss	35–20	Nov 2015	Guayaquil, Ecuador	Challenger	Clay	Gastão Elias	Guillermo Durán Andrés Molteni	3–6, 4–6
Win	36–20	Apr 2016	São Paulo, Brazil	Challenger	Clay	Caio Zampieri	José Pereira Alexandre Tsuchiya	6–4, 7–6(7–3)
Win	37–20	May 2016	Mestre, Italy	Challenger	Clay	Caio Zampieri	Kevin Krawietz Dino Marcan	7–6(7–3), 4–6, [12–10]
Loss	37–21	May 2016	Vicenza, Italy	Challenger	Clay	Gastão Elias	Andrey Golubev Nikola Mektić	3–6, 3–6
Loss	37–22	Jun 2016	Perugia, Italy	Challenger	Clay	Nicolás Barrientos	Andrés Molteni Rogério Dutra Silva	5–7, 3–6
Win	38–22	Jul 2016	Todi, Italy	Challenger	Clay	Marcelo Demoliner	Salvatore Caruso Alessandro Giannessi	6–1, 3–6, [10–5]
Loss	38–23	Sep 2016	Curitiba, Brazil	Challenger	Clay	André Ghem	Rubén Ramírez Hidalgo Pere Riba	7–6(7–3), 4–6, [7–10]
Loss	38–24	Sep 2016	Santos, Brazil	Challenger	Clay	Rogério Dutra Silva	Máximo González Sergio Galdós	3–6, 7–5, [12–14]
Loss	38–25	Jun 2017	Blois, France	Challenger	Clay	Máximo González	Sander Gillé Joran Vliegen	6–3, 3–6, [7–10]
Win	39–25	Jul 2017	Marburg, Germany	Challenger	Clay	Máximo González	Rameez Junaid Ruan Roelofse	6–3, 7–6(7–4)
Loss	39–26	Jul 2017	Perugia, Italy	Challenger	Clay	Nicolás Kicker	Salvatore Caruso Jonathan Eysseric	3–6, 3–6
Win	40–26	Oct 2017	Campinas, Brazil	Challenger	Clay	Máximo González	Gastão Elias José Pereira	6–1, 6–1
Loss	40–27	Oct 2017	Buenos Aires, Argentina	Challenger	Clay	Máximo González	Ariel Behar Fabiano de Paula	6–7(3–7), 7–5, [8–10]
Loss	40–28	Oct 2017	Cali, Colombia	Challenger	Clay	Sergio Galdós	Marcelo Arévalo Miguel Ángel Reyes-Varela	3–6, 4–6
Win	41–28	Nov 2017	Rio de Janeiro, Brazil	Challenger	Clay	Máximo González	Marcelo Arévalo Miguel Ángel Reyes-Varela	5–7, 6–4, [10–4]
Loss	41–29	Jun 2018	Vicenza, Italy	Challenger	Clay	Facundo Bagnis	Ariel Behar Enrique López Pérez	2–6, 4–6
Win	42–29	Jun 2018	Blois, France	Challenger	Clay	David Vega Hernández	Hsieh Cheng-peng Rameez Junaid	7–6(7–4), 6–1
Win	43–29	Jul 2018	Marburg, Germany	Challenger	Clay	David Vega Hernández	Henri Laaksonen Luca Margaroli	4–6, 6–4, [10–8]
Win	44–29	Sep 2018	Biella, Italy	Challenger	Clay	David Vega Hernández	Rameez Junaid Purav Raja	6–4, 6–4
Loss	44–30	Nov 2018	Guayaquil, Ecuador	Challenger	Clay	Thiago Monteiro	Guillermo Durán Roberto Quiroz	3–6, 2–6
Win	45–30	May 2019	Braga, Portugal	Challenger	Clay	Gerard Granollers Pujol	Kimmer Coppejans Zdeněk Kolář	6–4, 6–3
Loss	45–31	Jun 2019	Vicenza, Italy	Challenger	Clay	Fernando Romboli	Gonçalo Oliveira Andrei Vasilevski	3–6, 4–6
Win	46–31	Aug 2019	Manerbio, Italy	Challenger	Clay	Fernando Romboli	Sadio Doumbia Fabien Reboul	6–4, 7–6(7–4)
Loss	46–32	Sep 2019	Como, Italy	Challenger	Clay	Pedro Sousa	Andre Begemann Florin Mergea	7–5, 5–7, [12–14]

• Fabrício Neis at the Association of Tennis Professionals
• Fabrício Neis at the International Tennis Federation