This 2012–13 season in League One was Crewe's 89th competitive season in the English Football League and first upon return to League One after an absence spanning over three seasons.
Players' ages as of 27 April 2013 Appearances formatted as starts + substitutions.
Players highlighted in light grey denote the player had scored for the club before leaving for another club Players highlighted in light cyan[broken anchor] denote the player has scored for the club after arriving at Crewe during the season Players highlighted in Blonde denote the player has scored for the club before leaving the club on loan for part/the rest of the season Players highlighted in light grey denote the player has received a yellow/red card for the club before leaving for another club Players highlighted in light cyan[broken anchor] denote the player has received a yellow/red card for the club after arriving at Crewe during the season Players highlighted in Blonde denote the player has received a yellow/red card for the club before leaving the club on loan for part/the rest of the season