Steam locomotives of Ireland Belfast and Northern Counties Railway (1848–1903)  &  Northern Counties Committee (1903–1949) Belfast and Northern Counties Railway (1848–1903)  &  Northern Counties Committee (1903–1949)

| Class_ | Type_ | Fleet_numbers | Quantity_made | Manufacturer | Date_made | Date_withdrawn |
|---|---|---|---|---|---|---|
| P | 2-4-0T | 63–64 | 2 | Beyer, Peacock & Co. | 1877–1878 | 1920–1928 |
| Q | 0-6-0T | 65–67 | 3 | Beyer, Peacock & Co. | 1977–1882 | 1931–1933 |
| R | 2-6-0ST | 68 | 1 | Beyer, Peacock & Co. | 1880 | 1934 |
| S | 2-4-2T | 69–70 | 2 | Beyer, Peacock & Co. | 1882 | 1946–1954 |