2021 V.League 1

The 2021 V.League 1 was the 38th season of the V.League 1, the highest division of Vietnamese football and the 21st as a professional league.
The season was paused for a third time on 6 May 2021 due to an outbreak of the delta variant of the coronavirus in the country.
Despite attempts to re-start the season by late November, after a meeting with all teams on August 21, the season was officially cancelled, with no champion determined, and no teams to be relegated; the slots for the 2022 AFC Champions League and 2022 AFC Cup was awarded to Hoang Anh Gia Lai and Viettel respectively in November 26. After the cancellation of the league, LS Group ceased sponsorship due to issues, and Sâm Ngọc Linh Kon Tum was chosen as the main sponsor for the next season.

Competition format

The league was scheduled to operate in two stages, with the top six teams qualify for the championship group and remaining teams qualify for the relegation group after a single-round robin regular season. The season was cancelled with one matchday left until the completion of the regular season.

Teams

A total of 14 teams contested the league, including 13 teams from the 2020 season and Topenland Binh Dinh promoted from the 2020 V.League 2 season.

Stadiums and locations

Team	Location	Stadium	Capacity	Previous season rank
Topenland Binh Dinh	Binh Dinh	Quy Nhon		VL2
Becamex Binh Duong	Binh Duong	Go Dau		VL1
SHB Danang	Danang	Hoa Xuan		VL1
[Hoang Anh Gia Lai province\|Gia Lai FC\|Hoang Anh Gia Lai]	Gia Lai	Pleiku		VL1
Haiphong FC	Haiphong	Lach Tray		VL1
Hanoi FC	Hanoi	Hang Day		VL1
Viettel	Hanoi	Hang Day		VL1
Hong Linh Ha Tinh	Ha Tinh	Ha Tinh		VL1
Ho Chi Minh City FC	Ho Chi Minh City	Thong Nhat		VL1
Saigon FC	Ho Chi Minh City	Thong Nhat		VL1
Nam Dinh FC	Nam Dinh	Thien Truong		VL1
Song Lam Nghe An	Nghe An	Vinh		VL1
Than Quang Ninh	Quang Ninh	Cam Pha		VL1
Dong A Thanh Hoa	Thanh Hoa	Thanh Hoa		VL1