| Competition: | League of Ireland |
| Season: | 1947–48 |
| Winners: | Drumcondra (1st title) |
| League Topscorer: | Seán McCarthy (13 goals) |
| Biggest Home Win: | Cork United 6–2 Limerick Dundalk 4–0 Waterford |
| Biggest Away Win: | Bohemians 1-5 Drumcondra |
| Highest Scoring: | Bohemians 3-6 Shelbourne |
| Matches: | 56 |
| Total Goals: | 194 |
| Prevseason: | 1946–47 |
| Nextseason: | 1948–49 |
The 1947–48 League of Ireland was the 27th season of senior football in the Republic of Ireland.
Shelbourne were the defending champions.
No new teams were elected to the League.
| Team | Location | Stadium | |
|---|---|---|---|
| Bohemians | Dublin (Phibsborough) | Dalymount Park | |
| Cork United | Cork | Mardyke | |
| Drumcondra | Dublin (Clonturk) | Clonturk Park | |
| Dundalk | Dundalk | Oriel Park | |
| Limerick | Limerick | Markets Field | |
| Shamrock Rovers | Dublin (Milltown) | Glenmalure Park | |
| Shelbourne | Dublin (Ringsend) | Shelbourne Park | |
| Waterford | Waterford | Kilcohan Park |
Drumcondra won their first title.
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 | Sean McCarthy | Cork United | 13 |
| 2 | Kit Lawlor | Drumcondra | 10 |
| 3 | Brendan Carroll | Shelbourne | 9 |
| Paddy Coad | Shamrock Rovers | ||
| 5 | Gerry Malone | Shelbourne | 8 |
| Peadar Walsh | Dundalk | ||
| 7 | Benny Henderson | Drumcondra | 7 |
| 8 | Podge Gregg | Shamrock Rovers | 6 |
| Paddy Kinsella | Shelbourne | ||
| 10 | Danny Cameron | 5 | |
| Austin Curtin | Waterford | ||
| Noel Doyle | Bohemians | ||
| Tony Drummond | Cork United | ||
| Johnny Gavin | Limerick | ||
| Paddy O'Leary | Cork United | ||