| Dates: | 2–7 March |
| Level: | G2L5 |
| Prize Money: | 140000 |
| Venue: | St. Jakobshalle |
| Location: | Basel, Switzerland |
| Ms: | Viktor Axelsen |
| Country Ms: | DEN |
| Ws: | Carolina Marín |
| Country Ws: | ESP |
| Md1: | Kim Astrup |
| Country Md1: | DEN |
| Md2: | Anders Skaarup Rasmussen |
| Country Md2: | DEN |
| Wd1: | Pearly Tan |
| Country Wd1: | MAS |
| Wd2: | Thinaah Muralitharan |
| Country Wd2: | MAS |
| Xd1: | Thom Gicquel |
| Country Xd1: | FRA |
| Xd2: | Delphine Delrue |
| Country Xd2: | FRA |
| Previous: | 2019 |
| Next: | 2022 |
The 2021 Swiss Open (officially known as the Yonex Swiss Open 2021, after its sponsor) was a badminton tournament in St. Jakobshalle in Basel, Switzerland, from 2 to 7 March 2021. It had a purse of $140,000.
The 2021 Swiss Open was the first tournament of the 2021 BWF World Tour and also part of the Swiss Open championships which had been held since 1955. This tournament was organized by the Swiss Badminton and sanctioned by the BWF.[1]
This international tournament was held at St. Jakobshalle in Basel, Switzerland.[1]
Below is the point distribution table for each phase of the tournament based on the BWF points system for the BWF World Tour Super 300 event.[2]
The total prize money for this tournament was US$140,000. Distribution of prize money was in accordance with BWF regulations.[1]
| Event | Winner | Finals | Semi-finals | Last 16 | ||
| Singles | $10,500 | $5,320 | $2,030 | $840 | $490 | |
| Doubles | $11,060 | $5,320 | $1,960 | $1,015 | $525 |
Srikanth Kidambi (semi-finals) B. Sai Praneeth (quarter-finals)
Kantaphon Wangcharoen (quarter-finals) Kunlavut Vitidsarn (final)Swiss Badminton awarded a wild card entry to Christian Kirchmayr of Switzerland.
Carolina Marín (champion) P. V. Sindhu (final) Pornpawee Chochuwong (semi-finals) Busanan Ongbamrungphan (quarter-finals)
Sung Ji-hyun (second round)
Zhang Beiwen (quarter-finals) Kim Ga-eun (first round) Satwiksairaj Rankireddy / Chirag Shetty (semi-finals)
Vladimir Ivanov / Ivan Sozonov (second round)Swiss Badminton awarded a wildcard entry to Yann Orteu / Minh Quang Pham of Switzerland.
Jongkolphan Kititharakul / Rawinda Prajongjai (semi-finals)
Émilie Lefel / Anne Tran (first round)
Rachel Honderich / Kristen Tsai (quarter-finals)Swiss Badminton awarded a wildcard entry to Jenjira Stadelmann / Caroline Racloz of Switzerland.
Thom Gicquel / Delphine Delrue (champions)Swiss Badminton awarded a wildcard entry to Yann Orteu / Aline Müller of Switzerland.