| Name | Railroad, # | Builder, s/n | Build date | Whyte type | Notes |
|---|---|---|---|---|---|
| Nabb Gill | R&ER | Manning Wardle | 0-6-0T | 3' gauge | |
| Nanhoran Hall | GWR 4947 | 4-6-0 | |||
| Nannerth Grange | GWR 6826 | 4-6-0 | |||
| Napier | LMS 5646 | 4-6-0 | |||
| Naples | LBSCR 306 | Brighton | 4/1878 | 0-4-2 | Wd 12/1904. |
| Napoleon | GWR | GWR | 1856 | 2-4-0 | Wd 1880. |
| Napoleon | LNWR 1311 | Crewe 4538 | 3/1906 | 4-4-0 | Became LMS 5241; wd 1/1936. |
| Narcissus | LNWR 606 | 2-4-0 | Became LMS 5087. | ||
| Nasmyth | LNWR 919 | Crewe | 12/1893 | 2-4-0 | Became LMS 5040; wd 8/1928. |
| Natal Colony | GWR 3396 | 4-4-0 | |||
| Naworth Castle | LNER 2829 | 4-6-0 | |||
| Neath Abbey | GWR 5090 | 4-6-0 | |||
| Nederland Line | SR 21C15 | 4-6-2 | |||
| Neil Gow | LNER 2581 | 4-6-2 | Built as A1 class, upgraded to A3 class. | ||
| Nelson (1st) | GWR | Gooch | 1853 | 0-6-0 | Wd 1873; s to Star Patent Fuel Company in Cardiff. |
| Nelson (2nd) | GWR 3017 | GWR | 4/1892 | 2-2-2 | Rb 9/1894 as 4-2-2; rn Prometheus (2nd) in 5/1895. |
| Nelson (3rd) | GWR 3049 | GWR | 2/1895 | 4-2-2 | Originally built as Prometheus (4th); rn Nelson in 5/1895; Wd 7/1913. |
| Nelson | LMS 5664 | 4-6-0 | |||
| Nelson | LNWR 1979 | 7/1903 | 4-4-0 | Became LMS 5130 but the number was never applied to the locomotive's livery; wd 8/1923. | |
| Nemesis | GWR | Gooch | 1855 | 0-6-0 | Wd 1877. |
| Neptune (1st) | GWR | Tayleur 63 | 1838 | 2-2-2 | Wd 1840. |
| Neptune (2nd) | GWR | Gooch | 1854 | 0-6-0 | Wd 1881. |
| Neptune | LMS 5687 | 4-6-0 | |||
| Neptune | LNWR 1980 | 8/1903 | 4-4-0 | Rb 5/1922; became LMS 5182. | |
| Nero | GWR | Gooch | 1855 | 0-6-0 | Wd 1877. |
| New Brunswick | LMS 5557 | 4-6-0 | |||
| New Hebrides | LMS 5618 | 4-6-0 | |||
| New South Wales | LMS 5564 | 4-6-0 | |||
| New Zealand | LMS 5570 | 4-6-0 | |||
| New Zealand | LNWR 2081 | 6/1911 | 4-4-0 | Became LMS 5354; wd 1/1936. | |
| Newcomen | LNWR 2151 | 10/1910 | 4-4-0 | Became LMS 5334; rn 25334; wd 11/1937. | |
| Newfoundland | LMS 5573 | 4-6-0 | |||
| Newhaven | LBSCR 330 | 6/1881 | 2-2-2 | Wd 11/1908. | |
| Newport | GWR | GWR | 1866 | 0-6-0 | Wd 1874; s to B&E as #106; returned to GWR as #2087 in 1876; wd 1889. |
| Newport | SR 11 | 0-6-0T | Operated on the Isle of Wight. | ||
| Newport Castle | GWR 5065 | 4-6-0 | |||
| Newquay | N&CJR | 2-4-0T | |||
| Newton | LNWR 1480 | Crewe | 11/1888 | 2-4-0 | Became LMS 5010; wd 3/1928. |
| Newton Hall | GWR 5909 | 4-6-0 | |||
| Niagara | LNWR 40 | Crewe 4470 | 3/1905 | 4-4-0 | Became LMS 5198; wd 11/1930. |
| Nice | LBSCR 304 | Brighton | 12/1877 | 0-4-2 | Wd 7/1904. |
| Nigeria | LMS 5619 | 4-6-0 | |||
| Night Hawk | LNER 2577 | 4-6-2 | |||
| Nightingale | GWR 3449 | 4-4-0 | |||
| Nimrod | GWR | Gooch | 1854 | 0-6-0 | Wd 1877. |
| Ningwood | SR 18 | 0-4-4T | Operated on the Isle of Wight | ||
| Nora Creina | GWR | GWR | 1851 | 0-6-0ST | Wd 1872. |
| Normandy | SR 96 | 4-4-0 | |||
| Norna | LNER 9426 | 4-4-0 | |||
| North Borneo | LMS 5620 | 4-6-0 | |||
| North Foreland | SR 2422 | 4-4-2 | |||
| North Rhodesia | LMS 5621 | 4-6-0 | |||
| North Star | 1923 | 2-2-2 | Operable replica of GWR's first North Star locomotive; its construction used some parts of the original. Preserved on static display at Swindon Railway Museum | ||
| North Star (1st) | GWR | R Stephenson | 1837 | 2-2-2 | Pulled the inaugural train of railway directors on May 31, 1838; rb 1854; wd 1871; stored at Swindon until 1906. |
| North Star (2nd) | GWR 380 | Swindon | 1866 | 2-2-2 | Name removed circa 1897. |
| North Star | GWR 4000 | 4-6-0 | |||
| North Star | LNWR 934 | 2-4-0 | Became LMS 5089. | ||
| North West Frontier | LMS 5584 | 4-6-0 | |||
| Northern Chief | RH&DR 2 | Paxman | 1925 | 4-6-2 | Still in use as of 2009 |
| Northern Rhodesia | BR 45621 | 4-6-0 | |||
| Northumberland | LNER 2758 | 4-4-0 | |||
| Northwick Hall | GWR 4948 | 4-6-0 | |||
| Norton Hall | GWR 5935 | 4-6-0 | |||
| Norwich City | LNER 2839 | 4-6-0 | |||
| Nottingham Forest | LNER 2866 | 4-6-0 | |||
| Nottinghamshire | LNER 327 | 4-4-0 | |||
| Nova Scotia | LMS 5556 | 4-6-0 | |||
| Novelty | LMS 5733 | 4-6-0 | |||
| Novelty | LNWR 1682 | Crewe | 6/1892 | 2-4-0 | Became LMS 5036; wd 7/1928. |
| Novelty | SH&RG | Ericsson and Braithwaite | 1828 | 0-2-2T | Built by John Ericsson and John Braithwaite to participate in the Rainhill Trials; s to SH&RG; rb 1833 with new cylinders and boiler; original wheels and one original cylinder incorporated into a non-working replica in 1929; replica rebuilt in 1988 as a battery-powered locomotive; replica preserved at the Manchester Museum of Science and Industry; the remaining original cylinder is on display at the Rainhill library |
| Nubian | LNWR 1623 | 8/1911 | 4-4-0 | Became LMS 5364; wd 11/1936. | |
| Nunhold Grange | GWR 6842 | 4-6-0 | |||
| Nunney Castle | GWR 5029 | 5/1934 | 4-6-0 | Withdrawn December 1963; sent to Woodham Brothers Scrapyards, sold May 1964 to the Great Western Society, moved to Didcot in May 1976; sold to Jeremy Hosking; preserved in operational condition. More information: Wikipedia. |
|
| Nyasaland | LMS 5622 | 4-6-0 |