The 2021–22 PlusLiga was the 86th season of the Polish Volleyball Championship, the 69th season of the highest tier domestic division in the Polish volleyball league system since its establishment in 1954, and the 22nd season as a professional league.
The league is operated by the Polish Volleyball League SA (Polish: Polska Liga Siatkówki SA).
The regular season was played as a round-robin tournament.
The season started on 1 October 2021 and concluded on 14 May 2022.
ZAKSA Kędzierzyn-Koźle won their 9th title of the Polish Champions.