| Great Northern Railway C2 class London & North Eastern Railway C12 | |
| Powertype: | Steam |
| Designer: | Henry Ivatt |
| Builder: | Doncaster Works |
| Serialnumber: | 755–758, 788–971, 796–797, 812–821, 832–841, 924–933, 1017–1026, 1155–1164 |
| Builddate: | 1898–1907 |
| Whytetype: | 4-4-2T |
| Totalproduction: | 60 |
| Leadingdiameter: | 3feet |
| Driverdiameter: | 5feet |
| Trailingdiameter: | 3feet |
| Fueltype: | Coal |
| Boilerpressure: | 170- |
| Cylindercount: | Two, inside |
| Cylindersize: | 18x |
| Valvegear: | Stephenson |
| Valvetype: | Slide valves |
| Tractiveeffort: | 17900- |
| Numinclass: | 1 January 1923: 60, 1 January 1948: 49 |
| Fleetnumbers: | GNR: 1009A, 1010, 1013–1020, 1501–1550 |
| Withdrawndate: | 1957–1958 |
| Disposition: | All scrapped |
The Great Northern Railway class C2 locomotives is a scrapped class of 4-4-2 tank locomotives built by the Great Northern Railway (GNR) between 1898 and 1907. They were used on local and commuter passenger trains in Yorkshire and North London. They were withdrawn between 1957 and 1958.
The GNR numbered them 1009A, 1010, 1013–1020 and 1501–1550. All passed to the London and North Eastern Railway in 1923, who renumbered them by adding 3000 to their GNR number.
In the post World War II renumbering scheme, the remaining 50 locomotives were renumbered 7350–7399.
In 1948, the remaining 49 locomotives passed to British Railways, who renumbered them by prefixing a 6 to their LNER number (i.e. 67350–67399).