The 2021 regional tournaments for Class 4A softball.
2021 CHSAA Class 4A Softball Regionals Class 4A Region 1
2021 CHSAA Class 4A Softball Regionals Class 4A Region 2
2021 CHSAA Class 4A Softball Regionals Class 4A Region 3
2021 CHSAA Class 4A Softball Regionals Class 4A Region 4
2021 CHSAA Class 4A Softball Regionals Class 4A Region 5
2021 CHSAA Class 4A Softball Regionals Class 4A Region 6
2021 CHSAA Class 4A Softball Regionals Class 4A Region 7