Ajax (locomotive)
Locomotives named Ajax have included:
- L&MR 29 Ajax, an 0-2-2
- L&SR Ajax, an 0-4-2
- GWR Ajax, a broad gauge Premier class 0-6-0; withdrawn 1871.
- KFNB Ajax, one of a pair of 0-4-2 locomotive built for the Emperor Ferdinand Northern Railway, believed to be the oldest preserved steam locomotive on the European mainland; displayed in the Technisches Museum Wien
- L&SWR 41 Ajax a Hercules I class 0-4-2 goods locomotive
- MS&LR 24 Ajax, a 2-2-2 locomotive
- ELR 17, a Pegasus class
- SSR 21
- L&SWR 41 Ajax a Hercules II class 2-4-0, withdrawn 1883
- LC&DR Ajax an 0-6-0, later numbered 144
- SDR Ajax, one of the eight South Devon Railway Dido class broad gauge 0-6-0ST locomotives, later GWR 2149; withdrawn 1884.
- Logan and Hemingway 5 Ajax, later sold to the Manchester, Sheffield and Lincolnshire Railway
- L&SWR 41 Ajax a Vesuvius II class 2-4-0 passenger locomotive
- L&NWR 509, a Dreadnought class 2-2-2-0 passenger locomotive scrapped in 1904.
- Woolwich Arsenal Ajax, an 18-inch gauge 0-4-0T
- L&NWR 639 Ajax, an LNWR Precursor class 4-4-0, later LMS 5190; withdrawn 1928
- Ajax, an 0-6-T preserved on the Isle of Wight Steam Railway as their No. 38
- LMSR 6139 Ajax, an LMS Royal Scot Class 4-6-0 express locomotive, Renamed The Welch Regiment in 1936, rebuilt in 1946 and withdrawn 1962
- LMS 5689 Ajax, an LMS Jubilee Class express locomotive, withdrawn 1964
- Chatham Dockyard Trust Ajax, built for Chatham Dockyard. Preserved.
- BR D446, later 50046, one of the fifty class 50s, all of which were named after warships
