1945–46 Derby County F.C. season

The 1945–46 season saw Derby compete in the wartime Southern Division, as well as the F.A. Cup, which they went on to win.

Derby broke a club record in this season, when they went matches 17 unbeaten, until losing to Coventry City in March 1946. Derby's sixth round FA cup tie against Aston Villa set an attendance record at Villa Park of 76,500 spectators, a record which remains to the present day.

Left-half Tommy Eggleston, who had joined Derby 10 years prior in 1946, made his only senior appearance for the club in the FA Cup 3rd round second leg tie against Luton, before his transfer to Leicester City.

South Region War League
Through the Second World War, the Football League North and Football League South divisions of the Football League were created temporarily to limit travel distances between games. Despite starting in 1940, there was only one full season in 1945–46. Derby participated in the southern division.

Appearances and goals
! colspan=14 style=background:#dcdcdc; text-align:center| Goalkeepers

! colspan=14 style=background:#dcdcdc; text-align:center| Defenders

! colspan=14 style=background:#dcdcdc; text-align:center| Midfielders

! colspan=14 style=background:#dcdcdc; text-align:center| Forwards