2020–21 Scarlets season
| 2020–21 season | |||
| Head coach | Glenn Delaney until 8 May Dai Flanagan since 8 May | ||
|---|---|---|---|
| Chairman | Simon Muderack | ||
| Pro 14 | 3rd, Conference B | ||
| Pro14 Rainbow Cup | 7th | ||
| European Rugby Champions Cup | Round of 16 | ||
| Top try scorer | League: Dane Blacker (6) All: Dane Blacker (9) | ||
| Top points scorer | League: Dan Jones (57) All: Leigh Halfpenny (84) | ||
| |||
The 2020–21 season is the 17th season in the history of the Scarlets, a Welsh regional rugby union side based in Llanelli, Carmarthenshire. In this season, they competed in the Pro14 and the Champions Cup.
In December 2020, it was announced that the 2020–21 Pro14 season would conclude on 27 March 2021 after 16 rounds, and will be followed by the Pro14 Rainbow Cup, a competition featuring the four former South African Super Rugby sides, the Bulls, Lions, Sharks and Stormers. The Rainbow Cup would consist of two dual tournaments; one for the northern hemisphere teams and one for the four South African teams. The winners of both tournaments would face off in a final to crown the overall winner.
In April 2021, Dwayne Peel was announced as the head coach for the 2021–22 season, with Glenn Delaney moving to a Director of Rugby role. After a poor run of matches, Delaney was relieved of his duties as head coach and departed the club before assuming the role, with Dai Flanagan stepping in as caretaker head coach on the 8th of May 2021.
At the end of the season, Gareth Davies, Wyn Jones, Ken Owens and Liam Williams were called up to the British & Irish Lions squad for the 2021 tour to South Africa.