| Competition: | League of Ireland |
| Matches: | 132 |
| Total Goals: | 550 |
| League Topscorer: | Jimmy Gauld (30 goals) |
| Biggest Home Win: | Shamrock Rovers 7–0 Bohemians St Patrick's Athletic 10–3 Dundalk |
| Biggest Away Win: | Transport 0–7 Shelbourne |
| Highest Scoring: | St Patrick's Athletic 10–3 Dundalk |
| Prevseason: | 1953–54 |
| Nextseason: | 1955–56 |
| Season: | 1954–55 |
The 1954–55 League of Ireland was the 34th season of senior football in the Republic of Ireland.
Shamrock Rovers were the defending champions.
No new teams were elected to the League.
St Patrick's Athletic won their second title.
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 | Jimmy Gauld | Waterford | 30 |
| 2 | Shay Gibbons | St Patrick's Athletic | 28 |
| 3 | Rory Dwyer | Shelbourne | 19 |
| 4 | Dermot Curtis | 16 | |
| 5 | Paddy Ambrose | Shamrock Rovers | 14 |
| Johnny Armstrong | Sligo Rovers | ||
| 7 | Jack Fitzgerald | Waterford | 13 |
| 8 | Joe Martin | St Patrick's Athletic | 12 |
| Willie Moloney | Cork Athletic | ||
| 10 | Tommy Collins | 11 | |
| Dessie Glynn | Drumcondra | ||