2021 Australian Open – Women's doubles
| Women's doubles | |
|---|---|
| 2021 Australian Open | |
| Champions | Elise Mertens Aryna Sabalenka |
| Runners-up | Barbora Krejčíková Kateřina Siniaková |
| Score | 6–2, 6–3 |
Elise Mertens and Aryna Sabalenka defeated Barbora Krejčíková and Kateřina Siniaková in the final, 6–2, 6–3, to win the women's doubles tennis title at the 2021 Australian Open. It was their second major doubles title as a team, after the 2019 US Open. With the win, Sabalenka claimed the world No. 1 doubles ranking.
Tímea Babos and Kristina Mladenovic were the reigning champions, but withdrew from the tournament.