ITF Dominican Republic F3 12/09 19:00 - 몬테이로, 티아고 모우라 v Saavedra-Corvalan, Cristobal 6-1,6-4
ITF Dominican Republic F2 12/05 17:10 - 몬테이로, 티아고 모우라 v de Paula, Fabiano 4-6,2-6
ITF Dominican Republic F2 12/04 16:00 - 몬테이로, 티아고 모우라 v 모우테트, 고렌틴 6-3,6-2
ITF Dominican Republic F2 12/03 20:25 - van der Duim, Antal v 몬테이로, 티아고 모우라 Retired
ITF Dominican Republic F2 12/02 16:30 - 다시에크, 패트릭 v 몬테이로, 티아고 모우라 2-6,0-6
ITF Dominican Republic F1 11/28 15:00 - Smith, Connor v 몬테이로, 티아고 모우라 6-2,6-4
ITF Dominican Republic F1 11/27 15:00 - 몬테이로, 티아고 모우라 v de Paula, Fabiano 6-3,6-4
ITF Dominican Republic F1 11/25 17:15 - 몬테이로, 티아고 모우라 v 알카라즈 이보라, 알베르트 5-7,6-1,6-4
Umag, Croatia, Qualifying 07/20 09:55 46 몬테이로, 티아고 모우라 v 올리보, 렌조 4-6,3-6
Umag, Croatia, Qualifying 07/19 10:50 45 Topic, Josko v 몬테이로, 티아고 모우라 5-7,6-0,4-6
ATP Hamburg Qual 07/12 10:00 45 Schwartzman, Diego v 몬테이로, 티아고 모우라 6-2,6-2
ITF Netherlands F4 07/06 12:00 - Westerhof, Boy v 몬테이로, 티아고 모우라 4-6,7-6,5-7
ITF Netherlands F4 07/05 10:00 - 몬테이로, 티아고 모우라 v 메르텐스, 야니크 6-2,3-6,6-2
ITF Netherlands F4 07/04 10:00 - 몬테이로, 티아고 모우라 v 킹, 다리안 7-6,6-2
ITF Netherlands F4 07/02 16:30 - 몬테이로, 티아고 모우라 v Meuffels, Alban Retired
ITF Netherlands F4 06/30 16:00 - 몬테이로, 티아고 모우라 v 아렌즈, 샌더 7-5,6-1
ITF Netherlands F3 06/27 11:40 - 코페잔스, 키멜 v 몬테이로, 티아고 모우라 7-6,6-4
ITF Netherlands F2 06/16 16:00 - Meuffels, Alban v 몬테이로, 티아고 모우라 6-4,6-1
ITF Netherlands F1 06/13 09:00 - 산타나, 브루노 v 몬테이로, 티아고 모우라 7-5,6-2
ITF Netherlands F1 06/10 10:15 - 그리에크스풀, 스코트 v 몬테이로, 티아고 모우라 4-6,1-6
ITF Romania F3 05/30 09:00 - Dubarenco, Maxim v 몬테이로, 티아고 모우라 7-5,6-3
ITF Romania F3 05/29 07:00 - 이그나트, 드래고스 콘스탄틴 v 몬테이로, 티아고 모우라 6-4,2-6,3-6

Thiago Moura Monteiro (Brazilian Portuguese: [tʃiˈaɡu mõˈtejɾu]; born 31 May 1994) is a Brazilian professional tennis player.

Monteiro has a career-high ATP singles ranking of world No. 61 achieved on 17 October 2022. He also has a career-high ATP doubles ranking of No. 144, achieved on 31 January 2022. He is currently the No. 2 Brazilian tennis player.

On the ITF Junior Circuit, Monteiro peaked in the rankings at No. 2 on 2 February 2012, with his biggest junior singles title being the Grade A, Copa Gerdau in Porto Alegre, Brazil, in 2011.

In his first ATP match, as a wildcard ranked world No. 338 in the ATP 500 Rio de Janeiro in February 2016, Monteiro upset No. 9 Jo-Wilfried Tsonga in the first round. In the second round, Monteiro lost to eventual champion Pablo Cuevas. In his next tournament, the ATP 250 São Paulo, Monteiro won two matches (against former World No. 9 Nicolás Almagro, and Daniel Muñoz de la Nava), losing again to eventual champion Cuevas in the quarterfinals.

On May 8, 2016, Monteiro won his first ATP Challenger title in Aix-en-Provence, France. He defeated Carlos Berlocq in the final.