Maria Mateas
Maria Mateas is a Romanian-American junior tennis player.
Mateas has a career high WTA singles ranking of 284 achieved on 13 August 2018. She made her WTA main draw debut at the 2016 Bank of the West Classic, having received a wildcard into the singles main draw.
On the junior tour, Mateas has a career high ITF juniors ranking of 26 achieved in April 2016.
ITF finals (0–1)
Doubles (0–1)
| Outcome | No. | Date | Tournament | Surface | Partner | Opponents | Score |
| Runner-up | 1. | 13 April 2018 | Pelham, United States | Clay |  María José Portillo Ramírez |  Alexa Guarachi  Erin Routliffe | 1–6, 2–6 |