2021 Transylvania Open – Singles
| Singles | |
|---|---|
| 2021 Transylvania Open | |
| Champion | Anett Kontaveit |
| Runner-up | Simona Halep |
| Score | 6–2, 6–3 |
| Draw | 32 |
| Seeds | 8 |
Anett Kontaveit defeated Simona Halep in the final, 6–2, 6–3 to win the first edition of the women's singles tennis event at the 2021 Transylvania Open. Kontaveit won the title without dropping a set. By winning the title, Kontaveit qualified for the WTA Finals, overtaking Ons Jabeur in the Race to Guadalajara, and also entered the top 10 of the WTA rankings for the first time. Her win over Halep in the final also marked her first victory over the former world No. 1.
Halep reached the final losing just 12 games. Her loss snapped a 14 match win streak on home soil.