| Name | Railroad, # | Builder, s/n | Build date | Whyte type | Notes |
|---|---|---|---|---|---|
| Yarmouth | LBSCR 337 | 10/1881 | 2-2-2 | Wd 6/1908. | |
| Yarmouth | SR 2 | 4-4-0 | Operated on the Isle of Wight | ||
| Yataghan | GWR | St&Sl | 1841 | 2-2-2 | Wd 1871. |
| Yeo | NDR | 2-2-2 | |||
| Yiewsley Grange | GWR 6859 | 4-6-0 | |||
| Yorkshire | LNER 234 | 4-4-0 | |||
| Ypres | LNER 5505 | 4-4-0 | |||
| Ypres | LNER 9612 | 0-6-0 | |||
| Ysabel | Dodds | 2-4-0 | Tested with some success on the Lickey Incline in 1853. |