- Source: 2021 Kawasaki Frontale season
- Daftar juara sepak bola Jepang
- Daftar klub sepak bola divisi tertinggi di negara anggota AFC
- Piala Kaisar
- Liga Champions AFC 2021
- J2 League
- J.League
- BG Pathum United F.C.
- Chelsea F.C. musim 2019–2020
- Hidemasa Morita
- Liga Champions AFC 2017
- 2021 Kawasaki Frontale season
- Kawasaki Frontale
- 2025 Kawasaki Frontale season
- 2024 Kawasaki Frontale season
- 2022 Kawasaki Frontale season
- 2020 Kawasaki Frontale season
- Ao Tanaka
- Yasuto Wakizaka
- Tatsuki Seko
- Kaoru Mitoma
The 2021 season was Kawasaki Frontale's 17th consecutive season in the J1 League, where they lifted the title for the fourth time in five years. They also competed in the AFC Champions League, Emperor's Cup, J.League Cup, and the Japanese Super Cup.
Squad
As of 1 July 2021.
= First-team squad
=Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
= Out on loan
=Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
Transfers
= Transfers in
== Transfers out
=Competitions
= J1 League
=Table
Results summary
Results by matchday
Matches
= Emperor's Cup
=Results
= J.League Cup
=Matches
Prime stage
= Japanese Super Cup
== AFC Champions League
=Group stage
Matches
Honors
= Individual
=J.League MVP: Leandro Damião
J.League Best XI: Miki Yamane, Shogo Taniguchi, Jesiel, Yasuto Wakizaka, Akihiro Ienaga, Reo Hatate, Leandro Damião
J1 League Fair Play Award: Miki Yamane