| 2021 Tokyo Yakult Swallows | |
|---|---|
| Japan Series champions | |
| Central League champions | |
 | |
| League | Central League |
| Ballpark | Meiji Jingu Stadium |
| Record | 73–52–18 (.584) |
| League place | 1st |
| Parent company | Yakult Honsha |
| Manager | Shingo Takatsu |
The 2021 Tokyo Yakult Swallows season was the 71st season of the franchise of Nippon Professional Baseball, their 57th season at Meiji Jingu Stadium, and their 51st season under Yakult Honsha. This was also the Swallows' second season under Shingo Takatsu. This was also Takatsu's first season managing a full 143-game season, as the COVID-19 pandemic lowered the games in 2020 to 120 games. For the first time since 2015, the Swallows made the Japan Series, and won their first since 2001 against the Orix Buffaloes.