2021 Adelaide International

The 2021 Adelaide International was a tennis tournament on the 2021 WTA Tour. It was played on outdoor hard courts in Adelaide, South Australia, Australia. The Adelaide International is a WTA 500 Tournament.

It was the second time this tournament was held and it took place at the Memorial Drive Tennis Centre from the 22nd to the 27th of February, 2021. For 2021, with the COVID-19 pandemic causing travel chaos, the ATP event was moved to Melbourne. It was held alongside another 250 tournament called Melbourne 2 and the ATP Cup. Adelaide was temporarily renamed the Great Ocean Road Open. The WTA event will be held the week after the Australian Open, in Adelaide. Ashleigh Barty of Australia won the 2020 edition and sought to defend her domestic title. The tournament was eventually won by Iga Swiatek, who claimed her second career title, defeating Belinda Bencic in two sets.

Women's singles

 * 🇵🇱 Iga Świątek def. Belinda Bencic, 6–2, 6–2

Women's doubles

 * Alexa Guarachi / 🇺🇸 Desirae Krawczyk def. 🇺🇸 Hayley Carter / 🇧🇷 Luisa Stefani, 6–7(4–7), 6–4, [10–3]

Prize money

 * per team

Seeds

 * 1 Rankings are as of 5 March 2005.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇦🇺 Ashleigh Barty
 * 🇦🇺 Olivia Gadecki
 * 🇦🇺 Samantha Stosur
 * 🇦🇺 Ajla Tomljanović

The following players received entry from the qualifying draw:
 * 🇺🇸 Madison Brengle
 * 🇺🇸 Coco Gauff
 * 🇦🇺 Maddison Inglis
 * 🇮🇹 Jasmine Paolini
 * 🇷🇺 Liudmila Samsonova
 * 🇦🇺 Storm Sanders

The following players received entry as lucky losers:
 * 🇯🇵 Misaki Doi
 * 🇺🇸 Christina McHale

Withdrawals

 * Before the tournament

Seeds

 * 1 Rankings are as of 8 February 2021.

Withdrawals

 * Before the tournament
 * 🇷🇺 Anna Blinkova / 🇷🇺 Veronika Kudermetova → replaced by 🇨🇦 Sharon Fichman / 🇺🇸 Coco Gauff
 * Chan Hao-ching / Latisha Chan → replaced by 🇦🇺 Arina Rodionova / 🇦🇺 Storm Sanders
 * 🇨🇦 Gabriela Dabrowski / 🇺🇸 Bethanie Mattek-Sands → replaced by 🇺🇸 Bethanie Mattek-Sands / 🇺🇸 Asia Muhammad
 * 🇺🇸 Nicole Melichar / Demi Schuurs → replaced by 🇺🇸 Kaitlyn Christian / 🇺🇸 Sabrina Santamaria
 * 🇦🇺 Samantha Stosur / 🇨🇳 Zhang Shuai → replaced by 🇦🇺 Ellen Perez / 🇦🇺 Samantha Stosur