Sofia Costoulas
| Country (sports) | Belgium |
|---|---|
| Born | 2 April 2005 Genk, Belgium |
| Plays | Right-handed (two-handed backhand) |
| Prize money | US $140,472 |
| Singles | |
| Career record | 156–100 |
| Career titles | 4 ITF |
| Highest ranking | No. 184 (16 June 2025) |
| Current ranking | No. 184 (16 June 2025) |
| Grand Slam singles results | |
| French Open | Q2 (2025) |
| Doubles | |
| Career record | 66–47 |
| Career titles | 3 ITF |
| Highest ranking | No. 229 (25 September 2023) |
| Current ranking | No. 489 (16 June 2025) |
| Last updated on: 16 June 2025. | |
Sofia Costoulas (Greek: Κωστούλα, romanized: Kostoula; born 2 April 2005) is a Belgian professional tennis player. She has career-high rankings of No. 184 in singles, achieved on 16 June 2025, and No. 102 in doubles, achieved on 26 May 2025.