The 2021 Liga 3 South Kalimantan was the sixth season of Liga 3 South Kalimantan as a qualifying round for the national round of the 2021–22 Liga 3.
Persetala Tanah Laut were the defending champion.
Teams There are 14 teams participated in the league this season, divided into 2 groups of seven.
Team Location Barabai Central Hulu Sungai Batulicin Putra 69 Tanah Bumbu Kotabaru Kotabaru Perseam Amuntai North Hulu Sungai Persebaru Banjarbaru Banjarbaru Persehan Marabahan Barito Kuala Persemar Martapura Banjar Regency Persepan Pagatan Tanah Bumbu Perseran Rantau Tapin Persetala Tanah Laut Tanah Laut Persitam Tamban Barito Kuala Peseban Banjarmasin Banjarmasin PS Kab. Tapin Tapin Talenta Banua Banjar Regency
Group stage Group A
Group B
Knockout stage
References