| 1948 Ottawa Rough Riders season | |
|---|---|
| Head coach | Wally Masters |
| Home field | Lansdowne Park |
| Results | |
| Record | 10–2 |
| Division place | 1st, IRFU |
| Playoff finish | Lost Grey Cup |
The 1948 Ottawa Rough Riders finished in first place in the Interprovincial Rugby Football Union with a 10–2 record but lost the Grey Cup game to the Calgary Stampeders.