2021 Korea Open – Doubles
# 2021 Korea Open – Doubles

Lara Arruabarrena and Tatjana Maria were the reigning champions, but chose not to participate.

Choi Ji-hee and Han Na-lae won the title, defeating Valentini Grammatikopoulou and Réka Luca Jani in the final, 6–4, 6–4.

## Seeds

* Arianne Hartono / Olivia Tjandramulia (quarterfinals)
* Valentini Grammatikopoulou / Réka Luca Jani (final)

## 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

### Draw

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | A Hartono O Tjandramulia | 2 | 4 | | | | | | | | | | |
| | J-h Choi N-l Han | 6 | 6 | | | | | | | | | | |
| | J-h Choi N-l Han | 6 | 6 | | | J-h Choi N-l Han | 6 | 6 | | | | | |
| | | | | | | S-j Jang I Shinikova | 0 | 2 | | | | | |
| | S-j Jang I Shinikova | 7 | 6 | | | S-j Jang I Shinikova | 0 | 2 | | | | | |
| | R Bhatia A Kulikova | 5 | 0 | | | | | | | | | | |
| | R Bhatia A Kulikova | 5 | 0 | | | | | | | | J-h Choi N-l Han | 6 | 6 |
| | | | | | | | | | | 2 | V Grammatikopoulou RL Jani | 4 | 4 |
| | F Contreras Y Naito | 7 | 4 | [10] | | | | | | | | | | 2 | V Grammatikopoulou RL Jani | 4 | 4 |
| WC | B-y Jeong Y-w Jeong | 5 | 6 | [6] | | | | | | | | | |
| WC | B-y Jeong Y-w Jeong | 5 | 6 | [6] | | F Contreras Y Naito | 2 | 6 | [4] | | | | |
| | | | | | 2 | V Grammatikopoulou RL Jani | 6 | 1 | [10] | | | | |
| | P Plipuech L Zhu | 1 | 4 | | 2 | V Grammatikopoulou RL Jani | 6 | 1 | [10] | | | | |
| 2 | V Grammatikopoulou RL Jani | 6 | 6 | | | | | | | | | | |
