| Dates: | 13–25 November 2021 |
| Winners: | Ho Chi Minh City (10th title) |
| Second Other: | Hanoi Watabe |
| Third Other: | Than KSVN |
| Matches: | 10 |
| Total Goals: | 33 |
| League Topscorer: | Huynh Nhu (7 goals) |
| Biggest Home Win: | Hanoi Watabe 4–1 Phong Phu Ha Nam |
| Biggest Away Win: | Thai Nguyen T&T 1–4 Hanoi Watabe Thai Nguyen T&T 1–4 Ho Chi Minh City |
| Longest Wins: | 4 matches Ho Chi Minh City |
| Longest Unbeaten: | 4 matches Ho Chi Minh City |
| Longest Winless: | 4 matches Phong Phu Ha Nam |
| Longest Losses: | 4 matches Phong Phu Ha Nam |
| Prevseason: | 2020 |
| Nextseason: | 2022 |
| Updated: | 4 February 2022 |
| Season: | 2021 |
The 2021 Vietnamese Women's National League (referred to as the Thai Son Bac Cup for sponsorship reasons) was the 24th season of Vietnamese Women's National League, the professional women's football league in Vietnam. The season began on 13 November 2021 and finished on 25 November 2021. Defending champions Ho Chi Minh City won their 10th title.[1]
The season was set to start in May but was postponed due to the effects of the COVID-19 pandemic.[2] Due to the busy national team schedule with Women's Asian Cup qualification and the postponement of the Southeast Asian Games, it was decided to hold a condensed round-robin tournament in November with just 5 teams.[3] [4]
The league was expected to expand to 9 clubs from the 2020 season with Phong Phu Ha Nam fielding a second team. However, after the initial start was postponed, Son La withdrew. Hanoi Watabe, Ho Chi Minh City and Phong Phu Ha Nam later decided to not field their second teams.
| Team | Manager | Captain | Shirt sponsor | |
|---|---|---|---|---|
| Hanoi Watabe |  Jeong Sung-chun | Bùi Thúy An | LS Cable & System Watabe Wedding Thai Son Bac | |
| Ho Chi Minh City | Đoàn Thị Kim Chi | Huỳnh Như | LS Cable & System | |
| Phong Phu Ha Nam | Phạm Văn Hải | Nguyễn Thị Tuyết Dung | Phong Phu Corporation | |
| Thai Nguyen T&T | Đoàn Việt Triều | Nguyễn Thị Bích Ngọc | T&T Group | |
| Than KSVN | Đoàn Minh Hải | Dương Thị Vân | Vinacomin |
| Rank | Player | Club | Goals | |
|---|---|---|---|---|
| 1 | Huynh Nhu | Ho Chi Minh City | 7 | |
| 2 | Thai Thi Thao | Hanoi Watabe | 4 | |
| 3 | Lo Thi Hoai | Thai Nguyen T&T | 2 | |
| Ngan Thi Van Su | Hanoi Watabe | |||
| Ngoc Minh Chuyen | Thai Nguyen T&T | |||
| Nguyen Thi Van | Than KSVN | |||
| Pham Hai Yen | Hanoi Watabe | |||
| 8 | 12 players | 1 | ||
| Hi Chi Minh City | Thai Nguyen T&T | 4–1 (A) |
| Rank | Player | Club | Clean sheets |
|---|---|---|---|
| 1 | Tran Thi Kim Thanh | Ho Chi Minh City | 2 |
| 2 | Đào Thị Kiều Oanh | Hanoi Watabe | 1 |
| Khong Thi Hang | Than KSVN |