| Club: | Celtic |
| Season: | 1945–46 |
| Manager: | Jimmy McGrory |
| Stadium: | Celtic Park |
| League: | Southern League First Division |
| League Result: | 4th |
| Cup1: | Victory Cup |
| Cup1 Result: | Semi-final |
| Cup2: | Southern League Cup |
| Cup2 Result: | Group stage |
| Pattern La1: | _green_hoops |
| Pattern B1: | _greenhoops |
| Pattern Ra1: | _green_hoops |
| Pattern So1: | _band_white |
| Socks1: | 1fa128 |
| Prevseason: | 1944–45 |
| Nextseason: | 1946–47 |
During the 1945–46 Scottish football season, Celtic competed in the Southern League First Division.
See main article: 1945–46 Southern Football League (Scotland).
See main article: 1946 Victory Cup.
See main article: 1945–46 Southern League Cup (Scotland).