1945–46 League of Ireland
| Season | 1945–46 | 
|---|---|
| Champions | Cork United (5th title) | 
| Matches played | 56 | 
| Goals scored | 258 (4.61 per match) | 
| Top goalscorer | Patrick O'Leary (15 goals) | 
| Biggest home win | Cork United 9–1 Drumcondra | 
| Biggest away win | Bohemians 1–5 Shamrock Rovers Waterford 1–5 Limerick  | 
| Highest scoring | Cork United 9–1 Drumcondra Limerick 4–6 Cork United  | 
← 1944–45  1946–47 →   | |
The 1945–46 League of Ireland was the 25th season of senior football in the Republic of Ireland.
Cork United were the defending champions.