# 2021 Swedish Open – Women's singles

Misaki Doi was the defending champion but chose not to participate.
Nuria Párrizas Díaz won the title, defeating Olga Govortsova in the final, 6–2, 6–2.

## Seeds

* Rebecca Peterson (semifinals)
* Anna Kalinskaya (second round, retired)
* Mayar Sherif (quarterfinals)
* Claire Liu (quarterfinals)
* Anna Karolína Schmiedlová (second round)
* Kamilla Rakhimova (first round)
* Olga Govortsova (final)
* Maddison Inglis (second round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Rebecca Peterson | 3 | 4 | | | | |
| 7 | Olga Govortsova | 6 | 6 | | | | |
| 7 | Olga Govortsova | 6 | 6 | 7 | Olga Govortsova | 2 | 2 |
| | | | | | Nuria Párrizas Díaz | 6 | 6 |
| | Nuria Párrizas Díaz | 6 | 6 | | Nuria Párrizas Díaz | 6 | 6 |
| | Mihaela Buzărnescu | 3 | 4 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | R Peterson | 7$^8$ | 6 | | | | | | | | | | | | | |
| | G Min | 6$^6$ | 1 | | 1 | R Peterson | 6 | 6 | | | | | | | | |
| | L Arruabarrena | 6 | 6 | | | L Arruabarrena | 1 | 1 | | | | | | | | |
| | G Gatto-Monticone | 2 | 3 | | | | | | 1 | R Peterson | 7 | 6 | | | | |
| | M Björklund | 2 | 2 | | | | | | | A Bolsova | 5 | 4 | | | | |
| | A Bolsova | 6 | 6 | | | A Bolsova | 6 | 6 | | | | | | | | |
| | K Volynets | 7 | 6 | | | K Volynets | 4 | 1 | | | | | | | | |
| 6 | K Rakhimova | 5 | 1 | | | | | | | | | | 1 | R Peterson | 3 | 4 |
| 3 | M Sherif | 6 | 6$^6$ | 6 | | | | | | | | | 7 | O Govortsova | 6 | 6 |
| | F Jones | 4 | 7$^8$ | 0 | 3 | M Sherif | 7$^{11}$ | 6 | | | | | | | | |
| | K Kozlova | 6 | 6 | | | K Kozlova | 6$^9$ | 0 | | | | | | | | |
| | N Vikhlyantseva | 2 | 4 | | | | | | 3 | M Sherif | 4 | 2 | | | | |
| | L Küng | 6 | 6 | | | | | | 7 | O Govortsova | 6 | 6 | | | | |
| PR | D Lopatetska | 4 | 4 | | | L Küng | 5 | 1 | | | | | | | | |
| | F Di Lorenzo | 3 | 6 | 2 | 7 | O Govortsova | 7 | 6 | | | | | | | | |
| 7 | O Govortsova | 6 | 2 | 6 | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 8 | M Inglis | 3 | 7$^7$ | 7$^7$ | | | | | | | | | | | | |
| | J Cristian | 6 | 6$^5$ | 6$^3$ | 8 | M Inglis | 2 | 6 | 1 | | | | | | | |
| | N Párrizas Díaz | 6 | 6 | | | N Párrizas Díaz | 6 | 3 | 6 | | | | | | | |
| | V Lepchenko | 4 | 2 | | | | | | | | N Párrizas Díaz | 6 | 6 | | | |
| WC | C Hennemann | 6 | 6 | | | | | | | 4 | C Liu | 2 | 4 | | | |
| WC | Vanessa Ersöz | 0 | 1 | | WC | C Hennemann | 0 | 1 | | | | | | | | |
| WC | Lisa Zaar | 2 | 2 | | 4 | C Liu | 6 | 6 | | | | | | | | |
| 4 | C Liu | 6 | 6 | | | | | | | | | | | N Párrizas Díaz | 6 | 6 |
| 5 | AK Schmiedlová | 0 | 7 | 6 | | | | | | | | | | M Buzărnescu | 3 | 4 |
| | C Burel | 6 | 5 | 2 | 5 | AK Schmiedlová | 2 | 2 | | | | | | | | |
| | M Buzărnescu | 6 | 6 | | | M Buzărnescu | 6 | 6 | | | | | | | | |
| | Z Zlochová | 2 | 1 | | | | | | | | M Buzărnescu | 6 | 6 | | | |
| | A Bondár | 7$^7$ | 6 | | | | | | | | A Bondár | 2 | 4 | | | |
| PR | K Thandi | 6$^5$ | 0 | | | A Bondár | 6 | 3 | | | | | | | | |
| WC | F Östlund | 2 | 6 | 4 | 2 | A Kalinskaya | 4 | 0$^r$ | | | | | | | | |
| 2 | A Kalinskaya | 6 | 2 | 6 | | | | | | | | | | | | |