2021–22 Scarlets season
| 2021–22 season | |||
| Head coach | Dwayne Peel | ||
|---|---|---|---|
| Chairman | Simon Muderack | ||
| United Rugby Championship | 10th (Welsh Shield: 2nd) | ||
| European Rugby Champions Cup | Pool stage, 12th | ||
| Top try scorer | League: Johnny McNicholl (8) All: Johnny McNicholl (9) | ||
| Top points scorer | League: Sam Costelow (94) All: Sam Costelow (94) | ||
| Highest home attendance | 7,824 v Lions, 1 October 2021 | ||
| Lowest home attendance | 5,566 v Connacht, 19 February 2022 | ||
| Average home attendance | 6,688 | ||
| |||
The 2021–22 season was the 18th in the history of the Scarlets, a Welsh regional rugby union side based in Llanelli, Carmarthenshire. In this season, they competed in the inaugural United Rugby Championship and the Champions Cup. It was Dwayne Peel's first season as head coach of the region, following the departure of his predecessor Glenn Delaney.