| No. | Class | F.M. Whyte | Gauge | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|---|---|
| 1 | 0-6-0T | 4'-8½" | National Coal Board | Watercress Line (Mid Hants Railway), Alresford, ENG | operational | Hunslet Engine Co. #3781, 1952 | Named Thomas. Converted from an 0-6-0ST type in 1994. | |
| 15 (71529) | 0-6-0ST | 4'-8½" | War Dept. | Avon Valley Railway, Bitton, ENG | operational | Andrew Barclay Sons & Co. #2183, 1945 | Named Earl David. | |
| 71515 | 0-6-0ST | 4'-8½" | War Dept. | Pontypool & Blaenavon Railway, Blaenavon, WAL | operational | Robert Stephenson & Hawthorns #7169, 1944 | ||
| TKh49 | 0-6-0T | 4'-8½" | Skawina Metal Works | Swindon & Cricklade Railway, Blunsdon, ENG | operational | Fablok #3135, 1953 | Named Spartan. | |
| 0-6-0ST | 4'-8½" | National Coal Board | Foxfield Railway, Blythe Bridge, ENG | operational | Hunslet Engine Co. #3694, 1950 | Named Whiston. | ||
| 2 | 0-6-0ST | 4'-8½" | National Coal Board | Foxfield Railway, Blythe Bridge, ENG | operational | W. G. Bagnall #3059, 1954 | Named Florence. | |
| 0-6-0WT | 4'-8½" | Haydock Collieries | Foxfield Railway, Blythe Bridge, ENG | operational | Haydock Foundry, 1874 | Named Bellerophon. Owned by the Vintage Carriages Trust. | ||
| 75254 (7) | J94 | 0-6-0ST | 4'-8½" | War Dept | Bo'ness & Kinneil Railway, Bo'ness, SCT | operational | W. G. Bagnall #2777, 1945 | From National Coal Board. |
| 19 | J94 | 0-6-0ST | 4'-8½" | National Coal Board | Bo'ness & Kinneil Railway, Bo'ness, SCT | operational | Hunslet Engine Co. #1444, 1954 | |
| 6435 | 6400 | 0-6-0PT | 4'-8½" | BR (GWR) | Bodmin & Wenford Railway, Bodmin, ENG | operational | GWR Swindon Works, 1937 | |
| 4612 | 5700 | 0-6-0PT | 4'-8½" | GWR | Bodmin & Wenford Railway, Bodmin, ENG | operational | GWR Swindon Works, 1942 | |
| 71516 | 0-6-0ST | 4'-8½" | War Dept. | Gwili Railway, Bronwydd Arms, WAL | operational | Robert Stephenson & Hawthorns #7170, 1944 | Named Welsh Guardsman. | |
| 3879 | 0-6-0ST | 4'-8½" | War Dept. | Gwili Railway, Bronwydd Arms, WAL | operational | Vulcan Foundry #5272, 1945 | Named Haulwen. | |
| 3205 | 2251 | 0-6-0 | 4'-8½" | GWR (BR) | South Devon Railway, Buckfastleigh, ENG | out of service | 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. Awaiting overhaul. |
| 6412 | 6400 | 0-6-0PT | 4'-8½" | BR | South Devon Railway, Buckfastleigh, ENG | operational | GWR Swindon Works, 1934 | |
| L.92 (5786) | 5700 | 0-6-0PT | 4'-8½" | London Transport | South Devon Railway, Buckfastleigh, ENG | operational | GWR Swindon Works, 1929 | |
| 1369 | 1366 | 0-6-0PT | 4'-8½" | GWR | South Devon Railway, Buckfastleigh, ENG | operational | GWR Swindon Works, 1934 | |
| 1 | 0-6-0ST | 4'-8½" | National Coal Board | Chasewater Railway, Burntwood, ENG | operational | Hunslet Engine Co. #3783, 1953 | Named Darfield. | |
| 75008 | 0-6-0ST | 4'-8½" | War Dept. | East Lancashire Railway, Bury, ENG | operational | Hunslet Engine Co. #2857, 1943 | Named Swiftsure. | |
| 132 | 0-6-0ST | 4'-8½" | War Dept. | East Lancashire Railway, Bury, ENG | operational | Hunslet Engine Co. #3163, 1953 | Named Sapper. | |
| 1 (32) | 0-6-0T | 4'-8½" | Manchester Ship Canal | East Lancashire Railway, Bury, ENG | operational | Hudswell, Clarke & Co. #680, 1903 | Named Gothenburg. Fictionally named Thomas. | |
| 47327 (23) | 3F | 0-6-0T | 4'-8½" | BR (LMS) | Midland Railway - Butterley, Butterley, ENG | operational | North British Locomotive Co. #23406, 1926 | Fictionally named Jinty. |
| 190 | 0-6-0ST | 4'-8½" | War Dept. | Colne Valley Railway, Castle Hedingham, ENG | operational | Hunslet Engine Co. #3790, 1952 | ||
| TKh49 | 0-6-0 | 4'-8½" | Spa Valley | Churnet Valley Railway, Cheddleton, ENG | stored | Owned by the TKh Support Group. | ||
| TKh49 | 0-6-0T | 4'-8½" | Churnet Valley Railway, Cheddleton, ENG | operational | Fablok #2944, 1952 | Named Hotspur. | ||
| 3014 | 0-6-0T | 24" | French Army | Apedale Valley Light Railway, Chesterton, ENG | operational | Kerr, Stuart & Co. (Stoke on Trent) #3014, 1916 | Run by the Moseley Railway Trust. | |
| 0-6-0WT | 24" | Ashanti Goldfields Corp. | Apedale Valley Light Railway, Chesterton, ENG | operational | Hudswell, Clarke & Co. #1238, 1916 | Run by the Moseley Railway Trust. | ||
| 3650 | 5700 | 0-6-0PT | 4'-8½" | GWR | Didcot Railway Centre, Didcot, ENG | operational | GWR Swindon Works, 1939 | |
| 16 | 0-6-0ST | 4'-8½" | Acton Hall Colliery | Embsay & Bolton Abbey Steam Railway, Embsay, ENG | operational | Hunslet Engine Co. #2705, 1945 | Named Beatrice. | |
| 47 | 0-6-0ST | 4'-8½" | National Coal Board | Embsay & Bolton Abbey Steam Railway, Embsay, ENG | operational | Robert Stephenson & Hawthorns #7849, 1955 | Named Moorbarrow. | |
| 31 | 0-6-0ST | 4'-8½" | Sir Robert McAlpine & Sons | Fawley Hill, Fawley, ENG | private operational | Hudswell, Clarke & Co. #1026, 1913 | The Fawley HIll Railway has a maximum gradient of 1:13, the steepest in Great Britain. | |
| 192 | 0-6-0ST | 4'-8½" | War Dept. | Isle of Wight Steam Railway, Havenstreet, ENG | operational | Hunslet Engine Co. #3792, 1953 | Named Waggoner. | |
| W8 (46) | A1X | 0-6-0T | 4'-8½" | Southern | Isle of Wight Steam Railway, Havenstreet, ENG | operational | London, Brighton & South Coast Railway Brighton Work, 1876 | Named Freshwater. Previously named Newington. |
| W11 (40) | A1X | 0-6-0T | 4'-8½" | Southern | Isle of Wight Steam Railway, Havenstreet, ENG | operational | London, Brighton & South Coast Railway Brighton Work, 1878 | Named Newport. Previously named Brighton. |
| 14 | 0-6-0ST | 4'-8½" | Preston Docks | Lakeside & Haverthwaite Railway, Haverthwaite, ENG | operational | W. G. Bagnall #2682, 1942 | Named Princess. | |
| 2996 | 0-6-0ST | 4'-8½" | British Motor Corp. | Lakeside & Haverthwaite Railway, Haverthwaite, ENG | operational | W. G. Bagnall #2996, 1951 | Named Victor. | |
| 17 | 0-6-0T | 4'-8½" | Carron Iron Co. | Lakeside & Haverthwaite Railway, Haverthwaite, ENG | operational | Andrew Barclay Sons & Co. #1245, 1911 | Informally named Thomas. | |
| 43924 (3924) | 4F (3835) | 0-6-0 | 4'-8½" | BR | Keighley & Worth Valley Railway, Haworth, ENG | operational | Midland Railway Derby Works, 10/1920 | |
| 9 | 0-6-0WT | 24" | Carrieres de la Valee-Meureuse | West Lancashire Light Railway, Hesketh Bank, ENG | operational | Kerr, Stuart & Co. (Stoke on Trent) #2045, 1915 | Named Joffre. | |
| 1704 | 0-6-0T | 4'-8½" | Associated Portland Cement Manufacturers | Ingrow Loco, Ingrow, ENG | operational | Hudswell, Clarke & Co. #1704, 1938 | Named Nunlow. Operated by the Bahamas Locomotive Society. | |
| 1501 | 1500 | 0-6-0PT | 4'-8½" | BR | Severn Valley Railway, Kidderminster, ENG | operational | BR Swindon Works, 1949 | |
| 813 (26) | 0-6-0ST | 4'-8½" | GWR (Port Talbot Railway & Docks) | Severn Valley Railway, Kidderminster, ENG | out of service | Hudswell, Clarke & Co. #555, 06/1901 | Owned by the GWR 813 Preservation Fund. Restored to operation in July 2000. Taken out of service in September 2009. Returned to operation in August 2016. Taken out of service again in April 2022 due to a fracture in the supports under the cab. | |
| L | 0-6-0ST | 4'-8½" | Associated Portland Cement Manufacturers | Middleton Railway, Leeds, ENG | operational | Manning Wardle #1601, 1901 | Named Matthew Murray. | |
| 3 (293) | 0-6-0ST | 4'-8½" | Slough Estates | Middleton Railway, Leeds, ENG | operational | Hudswell, Clarke & Co. #1544, 1924 | ||
| 5 | 0-6-0WT | 24" | Likomba Development Co. | Leighton Buzzard Railway, Leighton Buzzard, ENG | operational | Orenstein & Koppel #12740, 1936 | Named Elf. | |
| 1 | 0-6-0T | 30" | Welshpool & Llanfair Light Railway | Welshpool & Llanfair Light Railway, Llanfair Caereinion, WAL | operational | Beyer, Peacock & Co. #3496, 1902 | Named The Earl. | |
| 2 | 0-6-0T | 30" | Welshpool & Llanfair Light Railway | Welshpool & Llanfair Light Railway, Llanfair Caereinion, WAL | operational | Beyer, Peacock & Co. #3497, 1902 | Named Countess. | |
| 6430 | 6400 | 0-6-0PT | 4'-8½" | GWR | Llangollen Railway, Llangollen, WAL | operational | GWR Swindon Works, 1937 | |
| 18 | 0-6-0ST | 4'-8½" | Eastmoors Steelworks | Llangollen Railway, Llangollen, WAL | operational | Hunslet Engine Co. #1873, 1937 | Named Jessie. | |
| 1 | 0-6-0ST | 4'-8½" | National Coal Board | Llangollen Railway, Llangollen, WAL | operational | Hunslet Engine Co. #3783, 1953 | Named Darfield. | |
| 47406 (16489) | 3F | 0-6-0T | 4'-8½" | BR | Great Central Railway, Loughborough, ENG | operational | Vulcan Foundry #3977, 1926 | |
| 3806 | 0-6-0ST | 4'-8½" | National Coal Board | Dean Forest Railway, Lydney, ENG | operational | Hunslet Engine Co. #3806, 1953 | Named Wilbert. | |
| 3 | 0-6-0T | 4'-8½" | Beamish Colliery | Tanfield Railway, Marley Hill, ENG | operational | Robert Stephenson & Co. (Darlington Works) #2730, 1891 | Named Twizell. | |
| 0-6-0T | 600mm | French Army | Lynton & Barnstaple Railway, Martinhoe Cross, ENG | operational | Kerr, Stuart & Co. (Stoke on Trent) #2451, 1915 | Named Axe. | ||
| 75019 | 0-6-0ST | 4'-8½" | War Dept. | Peak Rail, Matlock, ENG | operational | Hunslet Engine Co. #3883, 1944 | Named Lord Phil. | |
| 0-6-0ST | 4'-8½" | Stewarts & Lloyds | Royal Deeside Railway, Milton of Crathes, SCT | operational | Andrew Barclay Sons & Co. #2139, 1942 | Named Salmon. | ||
| A No. 5 | 0-6-0PT | 4'-8½" | Consett Steel & Iron Co. | Stephenson Railway Museum, North Shields, ENG | operational | Kitson & Co. #2509, 1883 | ||
| 68070 | 0-6-0ST | 4'-8½" | BR | Garw Valley Railway, Pontycymer, WAL | operational | Hunslet Engine Co. #3840, 1956 | Named Pamela. | |
| 0-6-0T | 23½" | Stewarts & Lloyds | Welsh Highland Heritage Railway, Porthmadog, WAL | operational | Andrew Barclay Sons & Co. #1578, 1918 | Not affiliated with the Welsh Highland Railway. Named Gertrude. | ||
| 21 | 0-6-0ST | 4'-8½" | British Steel Corp. | Ribble Steam Railway, Preston, ENG | operational | Hawthorn Leslie & Co. #3931, 1938 | Named Linda. | |
| 4 | 0-6-0ST | 4'-8½" | Birchenwood Gas Works | Ribble Steam Railway, Preston, ENG | operational | W. G. Bagnall #2680, 1944 | Named Courageous. Previously named Birchenwood. | |
| 66 | 0-6-0ST | 4'-8½" | National Coal Board | Buckinghamshire Railway Centre, Quainton, ENG | operational | Hunslet Engine Co. #3890, 1964 | Last commercial standard gauge steam locomotive built in the UK. | |
| 1 | 0-6-0T | 4'-8½" | Coltness Iron Co. | Buckinghamshire Railway Centre, Quainton, ENG | operational | North British Locomotive Co. #24564, 1939 | Named Coventry. | |
| 62 | 0-6-0ST | 4'-8½" | Stewarts & Lloyds | Spa Valley Railway, Royal Tunbridge Wells, ENG | operational | Robert Stephenson & Hawthorns #7673, 1950 | Named Ugly. | |
| 63 | 0-6-0ST | 4'-8½" | Stewarts & Lloyds | Great Central Railway - Nottingham, Ruddington, ENG | operational | Robert Stephenson & Hawthorns #7761, 1954 | Named Corby. | |
| 7564 (65462) | J15 (Y14) | 0-6-0 | 4'-8½" | LNER | Poppy Line (North Norfolk Railway), Sheringham, ENG | operational | Great Eastern Railway Stratford Works, 1912 | |
| 30075 (669) | 62 | 0-6-0T | 4'-8½" | North Dorset Railway, Shillingstone, ENG | restoration | Djuro Djakovic Works, Slavonski Brod, Croatia #669, 1960 | ||
| 30076 (521) | 62 | 0-6-0T | 4'-8½" | North Dorset Railway, Shillingstone, ENG | restoration | Djuro Djakovic Works, Slavonski Brod, Croatia #521, 1954 | ||
| 9682 | 5700 | 0-6-0PT | 4'-8½" | BR | GWR Preservation Group, Southall, ENG | private operational | BR Swindon Works, 05/1949 | |
| 2 | 0-6-0 | 15" | Lappa Valley Steam Railway | Lappa Valley Steam Railway, St. Newlyn East, ENG | operational | Berwyn Engineering #4, 1967 | Named Muffin. From the Longleat Safari & Adventure Park. | |
| 11 | 0-6-0 | 24" | Colonial Sugar Refining Co. | Statfold Barn Railway, Tamworth, ENG | private operational | Hudswell, Clarke & Co. #972, 1912 | Named Fiji. | |
| 2 | 0-6-0PT | 24" | Sociedad Hullera Espanola | Statfold Barn Railway, Tamworth, ENG | private operational | L. Corpet #439, 1884 | Named Minas de Aller. | |
| 291 | 0-6-0ST | 24" | Statfold Barn Railway | Statfold Barn Railway, Tamworth, ENG | private operational | Peckett & Sons #2050, 1944 | From Harrogate Gas Works. Named Harrogate. | |
| 0-6-0T | 24" | Rugby Portland | Statfold Barn Railway, Tamworth, ENG | private restoration | Peckett & Sons #1632, 1932 | Named Liass. From Langstaff, Ontario. | ||
| GP 39 | 0-6-0WT | 24" | Surrey County Council Highways Dept. | Statfold Barn Railway, Tamworth, ENG | private operational | Hudswell, Clarke & Co. #1643, 1930 | ||
| 14 | 0 | 0-6-0ST | 4'-8½" | Parkgate Iron & Steel Co. | Kent & East Sussex Railway, Tenterden, ENG | operational | Manning Wardle #1955, 1917 | Named Charwelton. |
| 3 (32670) | A1X | 0-6-0T | 4'-8½" | Kent & East Sussex Railway (BR) | Kent & East Sussex Railway, Tenterden, ENG | operational | London, Brighton & South Coast Railway Brighton Work, 1872 | Named Bodiam. Previously named Poplar. |
| 32678 (8) | A1X | 0-6-0T | 4'-8½" | BR (Kent & East Sussex Railway) | Kent & East Sussex Railway, Tenterden, ENG | operational | London, Brighton & South Coast Railway Brighton Work, 1880 | Named Knowle. Previously named Bembridge. |
| 65 (22) | S100 | 0-6-0T | 4'-8½" | Southern | Kent & East Sussex Railway, Tenterden, ENG | operational | Vulcan Foundry #4441, 1943 | Named Maunsell. |
| L.94 (7752) | 5700 | 0-6-0PT | 4'-8½" | London Transport | Tyseley Locomotive Works, Tyseley, ENG | private operational | North British Locomotive Co. #24040, 1930 | |
| 9600 | 5700 | 0-6-0PT | 4'-8½" | BR (GWR) | Tyseley Locomotive Works, Tyseley, ENG | private operational | GWR Swindon Works, 1945 | |
| 592 (31592) | C | 0-6-0 | 4'-8½" | South Eastern & Chatham Railway (BR) | Bluebell Railway, Uckfield, ENG | operational | South Eastern & Chatham Railway Longhedge Works, 1902 | |
| 30541 (541) | Q | 0-6-0 | 4'-8½" | BR (Southern) | Bluebell Railway, Uckfield, ENG | operational | SR Eastleigh Works, 1939 | |
| 178 (31178) | P | 0-6-0T | 4'-8½" | South Eastern & Chatham Railway (BR) | Bluebell Railway, Uckfield, ENG | operational | South Eastern & Chatham Railway Ashford Works, 1910 | Named Pioneer II. |
| 323 (31323) | P | 0-6-0T | 4'-8½" | South Eastern & Chatham Railway (BR) | Bluebell Railway, Uckfield, ENG | operational | South Eastern & Chatham Railway Ashford Works, 1910 | Named Bluebell. |
| 55 (32655) | A1X | 0-6-0T | 4'-8½" | LBSCR (BR) | Bluebell Railway, Uckfield, ENG | out of service | London, Brighton & South Coast Railway Brighton Work, 12/1875 | Named Stepney. Previously operated in June 2012. Awaiting possible overhaul. One of three steam locomotives in real life featured in Thomas & Friends, the others being Flying Scotsman and City of Truro. |
| 72 (32636) | A1X | 0-6-0T | 4'-8½" | LBSCR (BR) | Bluebell Railway, Uckfield, ENG | operational | LBSCR Brighton Works, 09/1872 | Named Fenchurch. Taken out of service in 1975 due to extensive cracks in the firebox. Taken out of service again in late 2019. Returned to operation in September 2022. |
| 54 | 0-6-0ST | 4'-8½" | Stewarts & Lloyds | East Anglian Railway Museum, Wakes Colne, ENG | operational | Robert Stephenson & Hawthorns #7031, 1941 | Named Pen Green. | |
| 15 | 0-6-0ST | 4'-8½" | British Sugar Corp. | Mid-Suffolk Light Railway Museum, Wetheringsett, ENG | operational | Hudswell, Clarke & Co. #1700, 1938 | Named Wissington. | |
| 0-6-0T | 15" | Wotton Light Railway | Wotton Light Railway, Wotton Underwood, ENG | private operational | Exmoor Steam Railway Bratton Fleming Works #301, 1996 | Named Sandy. | ||
| C1 (33001) | Q1 | 0-6-0 | 4'-8½" | Southern (BR) | National Railway Museum, York, ENG | display | SR Brighton Works, 1942 | Restored to operation by the Bluebell Railway in September 1980. Previously overhauled in 1992. Retired from excursion service in 2000. |
| 1275 | 1001 | 0-6-0 | 4'-8½" | Stockton & Darlington (LNER) | National Railway Museum, York, ENG | display | Dübs & Co. (Scotland), 05/1874 | Only surviving long boiler class steam locomotive in the UK. |
| 1247 (68846) | J52 (J13) | 0-6-0ST | 4'-8½" | Great Northern (BR) | National Railway Museum, York, ENG | display | Sharp, Stewart & Co., 05/1899 | Placed on display in Sacramento, CA in 1991 for Railfair 91. Loaned to the East Somerset Railway from 1995 to 1998, temporarily repainted into BR lined black livery, and temporarily renumbered to 4247. |