J.LEAGUE has announced the rescheduled dates for the 2021 MEIJI YASUDA J1 LEAGUE after the AFC Champions League 2021 (ACL 2021) schedule has changed. The matches rescheduled are as below.
| Sec. | Date | KO | Fixture | Venue | |||
| Before | New | ||||||
| 10 | Wednesday 14 April or Thursday 15 April | Sunday 18 April | 14:00 | Kawasaki-F | vs. | Hiroshima | Todoroki |
| Wednesday 14 April or Thursday 15 April or Friday 16 April | 15:00 | Nagoya | vs. | Tosu | Toyota.S | ||
| TBA | 15:00 | C-Osaka | vs. | Urawa | YANMAR STADIUM | ||
| Wednesday 14 April or Thursday 15 April | 17:00 | G-Osaka | vs. | Shimizu | Pana.S | ||
| 12 | Wednesday 12 May | Sunday 2 May | 15:00 | C-Osaka | vs. | G-Osaka | YANMAR STADIUM |
| Tuesday 4 May | 15:00 | Kawasaki-F | vs. | Nagoya | Todoroki | ||
| 13 | Wednesday 30 June | Saturday 8 May | 15:00 | Nagoya | vs. | C-Osaka | Toyota.S |
| 18:00 | G-Osaka | vs. | Kawasaki-F | Pana.S | |||
| 18 | Saturday 19 June | Wednesday 14 April | 19:00 | C-Osaka | vs. | Tokushima | YANMAR STADIUM |
| 19:00 | Tosu | vs. | G-Osaka | EKI.S | |||
| Saturday 17 July | 18:30 | Shimizu | vs. | Kawasaki-F | IAI.S | ||
| Thursday 12 August | 19:00 | Yokohama F･M | vs. | Nagoya | NHK SPRING .F | ||
| 19 | Wednesday 23 June | Wednesday 14 April | 19:00 | Kawasaki-F | vs. | Fukuoka | Todoroki |
| Tuesday 22 June | 19:30 | Nagoya | vs. | Hiroshima | Toyota.S | ||
| Wednesday 23 June | Wednesday 2 June | 19:00 | Shonan | vs. | G-Osaka | LemonS Hiratsuka | |
| TBA | TBA | Sapporo | vs. | C-Osaka | TBA | ||
| 20 | Saturday 26 June | Wednesday 12 May | 19:00 | Kawasaki-F | vs. | Sendai | Todoroki |
| Sunday 27 June | 19:00 | G-Osaka | vs. | Hiroshima | Pana.S | ||
| Saturday 26 June | Saturday 17 July | 19:00 | C-Osaka | vs. | Kobe | YODOKO STADIUM | |
| Sunday 27 June | 19:00 | Tosu | vs. | Nagoya | EKI.S | ||
| 21 | Sunday 4 July | Wednesday 12 May | 19:30 | Nagoya | vs. | Kashima | Toyota.S |
| Saturday 3 July | Wednesday 2 June | 19:00 | Yokohama FC | vs. | Kawasaki-F | NHK SPRING .F | |
| Sunday 4 July | Saturday 17 July | 18:30 | Fukuoka | vs. | G-Osaka | BEST-STA | |
| Wednesday 21 July | 19:00 | C-Osaka | vs. | FC-Tokyo | YODOKO STADIUM | ||
| 22 | Sunday 11 July | Thursday 29 April | 15:00 | Nagoya | vs. | Kawasaki-F | Toyota.S |
| Wednesday 21 July | 19:00 | G-Osaka | vs. | Kobe | Pana.S | ||
| Saturday 24 July | 19:00 | Tosu | vs. | C-Osaka | EKI.S | ||
| 24 | Friday 13 August | Sunday 15 August | 18:00 | Yokohama F･M | vs. | Oita | NHK SPRING .F |
| Saturday 14 August | 18:00 | Nagoya | vs. | Shonan | Toyota.S | ||
| 29 | Saturday 18 September or Sunday 19 September or Monday 20 September | TBA | Nagoya | vs. | Yokohama F･M | TBA | |
