| No. | Class | F.M. Whyte | Gauge | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|---|---|
| 8 | 2-6-2T | 23¾" | GWR | Vale of Rheidol Railway, Aberystwyth, WAL | operational | GWR Swindon Works, 1923 | Named Llywelyn. | |
| 4612 | 5700 | 0-6-0PT | 4'-8½" | GWR | Bodmin & Wenford Railway, Bodmin, ENG | operational | GWR Swindon Works, 1942 | |
| 5552 | 4575 | 2-6-2T | 4'-8½" | GWR | Bodmin & Wenford Railway, Bodmin, ENG | operational | GWR Swindon Works, 1928 | |
| 5199 | 5101 | 2-6-2T | 4'-8½" | GWR | Flour Mill Ltd, Bream, ENG | overhaul | GWR Swindon Works, 1934 | Restored to operation in 2003. Taken out of service for an overhaul in Jan 2019. Returned to operation in Apr 2019. Leased to the West Somerset Railway, Minehead, ENG from Dec 2020 to Dec 2022. Taken out of service again in Oct 2023. |
| L.150 (5521) | 4575 | 2-6-2T | 4'-8½" | London Transport (GWR) | Gwili Railway, Bronwydd Arms, WAL | operational | GWR Swindon Works, 1927 | From the Avon Valley Railway, Bitton, England. |
| 1420 | 1400 | 0-4-2T | 4'-8½" | GWR | South Devon Railway, Buckfastleigh, ENG | restoration | GWR Swindon Works, 11/1933 | Named Bulliver. |
| 3205 | 2251 | 0-6-0 | 4'-8½" | GWR (BR) | South Devon Railway, Buckfastleigh, ENG | overhaul | GWR Swindon Works, 1946 | Owned by the 2251 Fund. Restored to operation in May 1970. Taken out of service in 2006. Returned to operation in May 2010. Taken out of service again in 2017. |
| L.92 (5786) | 5700 | 0-6-0PT | 4'-8½" | London Transport (GWR) | South Devon Railway, Buckfastleigh, ENG | operational | GWR Swindon Works, 1929 | |
| 1369 | 1366 | 0-6-0PT | 4'-8½" | GWR (BR) | South Devon Railway, Buckfastleigh, ENG | operational | GWR Swindon Works, 1934 | Only surviving GWR 1366 class Pannier tank locomotive. Restored to operation in 1965. Restored back to operation in 1996. Painted in the BR black livery in 2005 and 2016. Taken out of service again in May 2017. Returned to operation in Oct 2019. |
| 6412 | 6400 | 0-6-0PT | 4'-8½" | BR (GWR) | South Devon Railway, Buckfastleigh, ENG | operational | GWR Swindon Works, 1934 | |
| 6430 | 6400 | 0-6-0PT | 4'-8½" | GWR | South Devon Railway, Buckfastleigh, ENG | operational | GWR Swindon Works, 1937 | From the Llangollen Railway, Llangollen, Wales. |
| 5637 | 5600 | 0-6-2T | 4'-8½" | BR (GWR) | East Somerset Railway, Cranmore, ENG | overhaul | GWR Swindon Works, 1925 | Owned by the 5637 Steam Locomotive Group. Restored to operation in 1999 and painted in GWR Brunswick green livery. Repainted back into BR black livery in 2002. Taken out of service in 2007. Taken out of service again in Apr 2020. |
| 4247 | 4200 | 2-8-0T | 4'-8½" | BR (GWR) | East Somerset Railway, Cranmore, ENG | operational | GWR Swindon Works #2637, 1916 | From the Bodmin & Wenford Railway, Bodmin. |
| 5029 | 4073 | 4-6-0 | 4'-8½" | BR (GWR) | Crewe Works (Royal Scot Locomotive & General Trust), Crewe, ENG | operational | GWR Swindon Works, 1934 | Named Nunney Castle. Restored to operation in 1990. Taken out of service in late 2015. Returned to operation in April 2025. |
| 93 | Steam Railmotor (Diagram R) | 4'-8½" | GWR | Didcot Railway Centre, Didcot, ENG | overhaul | GWR Swindon Works, 1908 | Only surviving GWR steam railmotor. Restored to operation in 2011. Taken out of service in early 2021. | |
| 1466 | 1400 | 0-4-2T | 4'-8½" | GWR | Didcot Railway Centre, Didcot, ENG | operational | GWR Swindon Works, 02/1936 | |
| 3650 | 5700 | 0-6-0PT | 4'-8½" | GWR (BR) | Didcot Railway Centre, Didcot, ENG | overhaul | GWR Swindon Works, 1939 | Restored to operation in July 2008. Taken out of service in 2016. |
| 4144 | 5101 | 2-6-2T | 4'-8½" | BR (GWR) | Didcot Railway Centre, Didcot, ENG | operational | GWR Swindon Works, 1946 | |
| 2999 | 2900 | 4-6-0 | 4'-8½" | GWR | Didcot Railway Centre, Didcot, ENG | operational | GWR Swindon Works, 2019 | Named Lady of Legend. Construction completed in 2019. Second newly-built steam locomotive in the UK. Built using parts from scrapped GWR Hall class 4942 'Maindy Hall'. |
| 4942 | 4900 | 4-6-0 | 4'-8½" | GWR (BR) | Didcot Railway Centre, Didcot, ENG | scrapped | GWR Swindon Works, 1929 | Named Maindy Hall. Scrapped sometime during the late 2010s. Some parts have been reused for the construction of newly-built GWR Saint class 2999 'Lady of Legend'. |
| 4079 | 4073 | 4-6-0 | 4'-8½" | GWR (BR) | Didcot Railway Centre, Didcot, ENG | operational | GWR Swindon Works, 02/1924 | Named Pendennis Castle. Operated in excursion service in Australia from 1978 to 1994. Restored back to operation in August 2021. Debuted in excursion service in the UK on April 2, 2022. |
| 1014 | 1000 | 4-6-0 | 4'-8½" | GWR | Didcot Railway Centre, Didcot, ENG | construction | GWR Swindon Works | Replica. Named County of Glamorgan. Being built using parts from a GWR Hall class (the boiler will come from LMS 8F class 48518). |
| 5051 | 4073 | 4-6-0 | 4'-8½" | GWR (BR) | Didcot Railway Centre, Didcot, ENG | display | GWR Swindon Works, 05/1936 | Named Earl Bathurst. Previously named Drysllwyn Castle. Remained in a scrapyard until March 1969. Restored to operation in 1979. Previously operated in 2008. Awaiting possible overhaul. |
| 6023 | 6000 | 4-6-0 | 4'-8½" | BR (GWR) | Didcot Railway Centre, Didcot, ENG | overhaul | GWR Swindon Works, 1930 | Named King Edward II. Taken out of service for major maintenance in September 2012. Returned to operation in January 2013. Taken out of service again in September 2020. |
| 5619 | 5600 | 0-6-2T | 4'-8½" | BR (GWR) | Telford Steam Railway, Horsehay, ENG | operational | GWR Swindon Works, 1925 | |
| 1450 | 1400 | 0-4-2T | 4'-8½" | GWR | Severn Valley Railway, Kidderminster, ENG | operational | GWR Swindon Works, 07/1935 | |
| L.95 (5764) | 5700 | 0-6-0PT | 4'-8½" | London Transport (GWR) | Severn Valley Railway, Kidderminster, ENG | overhaul | GWR Swindon Works, 1929 | Restored to operation in 1971 and painted in GWR Brunswick green livery. Taken out of service in 1982. Returned to operation in early 1989. Taken out of service again in Dec 2010. Repainted back into LT Crimson Lake livery in 2019. |
| 4566 | 4500 | 2-6-2T | 4'-8½" | BR (GWR) | Severn Valley Railway, Kidderminster, ENG | operational | GWR Swindon Works, 1924 | |
| 2857 | 2800 | 2-8-0 | 4'-8½" | GWR | Severn Valley Railway, Kidderminster, ENG | overhaul | GWR Swindon Works #2763, 1918 | Restored to operation in September 1979. Taken out of service in January 2023. |
| 4930 | 4900 | 4-6-0 | 4'-8½" | GWR (BR) | Severn Valley Railway, Kidderminster, ENG | operational | GWR Swindon Works, 05/1929 | Named Hagley Hall. Restored to operation in Sep 1979. Previously operated in 1999. Restored back to operation on Sep 9, 2022. Original tender is being used behind BR Hall class 6990 'Witherslack Hall'. |
| 7802 | 7800 | 4-6-0 | 4'-8½" | BR (GWR) | Severn Valley Railway, Kidderminster, ENG | operational | GWR Swindon Works, 01/1938 | Named Bradley Manor. Owned by the Erlestoke Manor Fund. Restored to operation in 1993. Taken out of service in July 2019 due to a broken piston. Returned to operation on January 19, 2025. |
| 7812 | 7800 | 4-6-0 | 4'-8½" | BR (GWR) | Severn Valley Railway, Kidderminster, ENG | operational | GWR Swindon Works, 01/1939 | Named Erlestoke Manor. Owned by the Erlestoke Manor Fund. Restored to operation in September 1979. Taken out of service in December 2017. Returned to operation in April 2023. |
| 2861 | 2800 | 2-8-0 | 4'-8½" | GWR | Llangollen Railway, Llangollen, WAL | scrapped | GWR Swindon Works, 1918 | Some parts have been reused for the ongoing construction of newly-builds GWR 4-4-0 County class 3840 "County of Montgomery" and GWR 2-8-0 4700 class 4709. |
| 3802 | 2884 | 2-8-0 | 4'-8½" | GWR | Llangollen Railway, Llangollen, WAL | operational | GWR Swindon Works, 1938 | |
| 5972 | 4900 | 4-6-0 | 4'-8½" | Hogwarts Railways (GWR) | Warner Bros. Studio Tour London, London, ENG | display | GWR Swindon Works, 04/1937 | Named Olton Hall. Fictionally named Hogwarts Castle. Previously owned by West Coast Railway Co. Featured in the Harry Potter films. Taken out of service in 2014. Will remain on display until the current lease expires. |
| 5541 | 4575 | 2-6-2T | 4'-8½" | BR (GWR) | Dean Forest Railway, Lydney, ENG | operational | GWR Swindon Works, 1928 | |
| 6634 | 5600 | 0-6-2T | 4'-8½" | GWR | Peak Rail, Matlock, ENG | restoration | GWR Swindon Works, 08/1928 | |
| 6435 | 6400 | 0-6-0PT | 4'-8½" | BR (GWR) | West Somerset Railway, Minehead, ENG | operational | GWR Swindon Works, 1937 | From the Bodmin & Wenford Railway, Bodmin. |
| 9351 (5193) | 9300 | 2-6-0 | 4'-8½" | BR (GWR) | West Somerset Railway, Minehead, ENG | operational | GWR Swindon Works, 10/1934 | Originally built as GWR 5101 class No. 5193. Previously converted to a GWR 4300 class 2-6-0 type. Converted again to a GWR 9300 class in 2004 and renumbered to 9351. Taken out of service in late 2014. Returned to operation in Jan 2019. |
| 3850 | 2884 | 2-8-0 | 4'-8½" | BR (GWR) | West Somerset Railway, Minehead, ENG | operational | GWR Swindon Works, 06/1942 | Owned by the Dinmore Manor Locomotive Ltd. Restored to operation in 2006. Taken out of service in September 2015. Overhaul completed in Sep 2024. |
| 6024 | 6000 | 4-6-0 | 4'-8½" | BR (GWR) | West Somerset Railway, Minehead, ENG | operational | GWR Swindon Works, 06/1930 | Named King Edward I. Owned by the Royal Scot Locomotive & General Trust. Restored to operation in Feb 1989. Taken out of service in Apr 2012. Returned to operation in Aug 2022. |
| 6960 | 6959 | 4-6-0 | 4'-8½" | GWR (BR) | West Somerset Railway, Minehead, ENG | display | GWR Swindon Works, 03/1944 | Named Raveningham Hall. Owned by the Locomotive Services Ltd. Restored to operation in 1975. Taken out of service in Apr 2003. Returned to operation in Nov 2011. Taken out of service again in Jul 2021. Awaiting overhaul. |
| 4141 | 5101 | 2-6-2T | 4'-8½" | BR (GWR) | Epping Ongar Railway, Ongar, ENG | restoration | GWR Swindon Works, 1946 | Restored to operation in 1998. Taken out of service for boiler repairs in 2009. Returned to operation in December 2012. Taken out of service again for overhaul in late 2016. Undergoing overhaul. |
| 4277 | 4200 | 2-8-0T | 4'-8½" | BR (GWR) | Dartmouth Steam Railway & River Boat Co., Paignton, ENG | operational | GWR Swindon Works #2857, 1920 | Named Hercules. |
| 5239 | 5205 | 2-8-0T | 4'-8½" | GWR (BR) | Dartmouth Steam Railway & River Boat Co., Paignton, ENG | operational | GWR Swindon Works, 1924 | Named Goliath. Restored to operation in June 1976. Taken out of service in late 2015. Returned to operation in April 2020. |
| 5643 | 5600 | 0-6-2T | 4'-8½" | GWR | Ribble Steam Railway, Preston, ENG | restoration | GWR Swindon Works, 10/1925 | |
| 9400 | 9400 | 0-6-0T | 4'-8½" | GWR (BR) | Museum of the Great Western Railway, Swindon, ENG | display | GWR Swindon Works, 1947 | Owned by the National Railway Museum York. |
| Star | 2-2-2 | 84¼" | GWR | Museum of the Great Western Railway, Swindon, ENG | display | GWR Swindon Works, 1925 | Named North Star. | |
| 2818 | 2800 | 2-8-0 | 4'-8½" | GWR (BR) | Museum of the Great Western Railway, Swindon, ENG | display | GWR Swindon Works, 12/1905 | Cosmetically restored at the BR Eastleigh Works in 1966. Ownership transferred to the museum from the National Railway Museum York in 2017. |
| 3717 (3440) | 3700 | 4-4-0 | 4'-8½" | GWR | Museum of the Great Western Railway, Swindon, ENG | display | GWR Swindon Works # 2000, 04/1903 | Named City of Truro. Owned by the National Railway Museum York. Became the first steam locomotive in the UK claimed to have reached 100 mph (102 mph, 1904). Retired from excursion service in 2006 due to firebox damage. |
| 6000 | 6000 | 4-6-0 | 4'-8½" | BR (GWR) | Museum of the Great Western Railway, Swindon, ENG | display | GWR Swindon Works, 06/1927 | Named King George V. Owned by the National Railway Museum York. Restored to operation in November 1968. Retired from excursion service in September 1987. |
| 4073 | 4073 | 4-6-0 | 4'-8½" | GWR (BR) | Museum of the Great Western Railway, Swindon, ENG | display | GWR Swindon Works, 08/1923 | Named Caerphilly Castle. Owned by the National Railway Museum York. |
| 5668 | 5600 | 0-6-2T | 4'-8½" | GWR | Kent & East Sussex Railway, Tenterden, ENG | stored | GWR Swindon Works, 06/1926 | |
| 6619 | 5600 | 0-6-2T | 4'-8½" | GWR | Kent & East Sussex Railway, Tenterden, ENG | stored | GWR Swindon Works, 01/1928 | |
| 1442 | 1400 | 0-4-2T | 4'-8½" | GWR | Tiverton Museum of Mid Devon Life, Tiverton, ENG | display | GWR Swindon Works, 04/1935 | |
| 5542 | 4575 | 2-6-2T | 4'-8½" | GWR | Gloucestershire Warwickshire Railway, Toddington, ENG | operational | GWR Swindon Works, 1928 | |
| 2807 | 2800 | 2-8-0 | 4'-8½" | GWR | Gloucestershire Warwickshire Railway, Toddington, ENG | operational | GWR Swindon Works #2102, 10/1905 | Oldest surviving GWR 2800 class. Owned by the Cotswold Steam Preservation Limited. Restored to operation in 2010. Taken out of service in Jan 2017. Taken out of service again in early Jan 2020. Returned to operation in Sep 2023. |
| 4270 | 4200 | 2-8-0T | 4'-8½" | GWR | Gloucestershire Warwickshire Railway, Toddington, ENG | operational | GWR Swindon Works #2850, 1919 | Owned by Locomotive Services Ltd. |
| 9600 | 5700 | 0-6-0PT | 4'-8½" | BR (GWR) | Tyseley Locomotive Works, Tyseley, ENG | private operational | GWR Swindon Works, 1945 | |
| 4936 | 4900 | 4-6-0 | 4'-8½" | BR (GWR) | Tyseley Locomotive Works, Tyseley, ENG | overhaul | GWR Swindon Works, 06/1929 | Named Kinlet Hall. Owned by the Kinlet Hall Ltd (JJP Holdings Group). Restored to operation in Feb 2000. Taken out of service in Oct 2009. Leased to the West Somerset Railway from 2015 to 2020. Taken out of service again in Nov 2016. |
| 6880 | 6800 | 4-6-0 | 4'-8½" | BR (GWR) | Tyseley Locomotive Works, Tyseley, ENG | private operational | GWR Swindon Works, 04/2024 | Named Betton Grange. Construction completed on April 12, 2024. Third newly-built steam locomotive in the UK. Built using parts from a GWR Hall class. Debuted in excursion service on May 26, 2024. |
| 4965 | 4900 | 4-6-0 | 4'-8½" | GWR | Tyseley Locomotive Works, Tyseley, ENG | overhaul | GWR Swindon Works, 1931 | Named Rood Ashton Hall. Taken out of service in June 2019 due to major boiler work. |
| 5043 | 4073 | 4-6-0 | 4'-8½" | BR (GWR) | Tyseley Locomotive Works, Tyseley, ENG | private operational | GWR Swindon Works, 1936 | Named Earl of Mount Edgcumbe. Previously named Banbury Castle. Taken out of service in 2018. Returned to operation on February 24, 2023. Currently certified for mainline operations. |
| 5080 | 4073 | 4-6-0 | 4'-8½" | GWR (BR) | Tyseley Locomotive Works, Tyseley, ENG | overhaul | GWR Swindon Works, 05/1939 | Named Defiant. Previously Named Ogmore Castle. Restored to operation in Jul 1987. Previously operated in 1997. Loaned to the Buckinghamshire Railway Centre from Jan 2002 to May 2017. Tender overhauled in 2025. |
| 4003 | 4000 | 4-6-0 | 4'-8½" | GWR | National Railway Museum, York, ENG | display | GWR Swindon Works, 1907 | Named Lode Star. Only surviving GWR Star class locomotive. |