Ten teams contested the league: Airdrieonians, Alloa Athletic, Clyde, Dunfermline Athletic, Edinburgh, Falkirk, Kelty Hearts, Montrose, Peterhead and Queen of the South.
Promoted from League Two Relegated from the Championship Relegated to League Two Promoted to the Championship
The SPFL League One manager of the year was James McPake of Dunfermline Athletic.
The SPFL League One player of the year was Kyle Benedictus of Dunfermline Athletic.
The winners advanced to the final, with the highest-ranked team hosting the second leg.