A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
| ELR | Route | Section |
|---|---|---|
| HAC ℹ️ | Harworth Colliery Branch | former Firbeck Jn to former Harworth Colliery |
| HAG | Hamworthy Goods Branch | Hamworthy Jn to Hamworthy Quay (Poole) |
| HAH1 | Haverton Hill South Branch | Belasis Lane Jn to HAH1/HAH2 interface |
| HAH2 ℹ️ | Haverton Hill South Branch | HAH1/HAH2 interface to ICI Haverton Hill |
| HAJ | Hadfield and Ardwick Jn Line | |
| HAM | Hampton Court Branch | Surbiton (Down Hampton Court Line Jn) to Hampton Court (via Hampton Court Jn) |
| HAN | Hanwell Loop | Hanwell Jn to Drayton Green Jn |
| HAR ℹ️ | King’s Lynn Harbour Branch | |
| HAS | Harrogate Goods Sidings | |
| HAU | Habrough Jn to Ulceby South Jn | |
| HAY1 | Harrogate to York Line | Skelton Jn to former Starbeck North Jn |
| HAY2 ℹ️ | Harrogate to York Line | Harrogate to former Starbeck North Jn |
| HBL | Morecambe North Curve | Hest Bank Jn to Bare Lane Jn |
| HBS | Hull to Seamer West Jn (via Bridlington) | West Parade Jn to Seamer West Jn |
| HCD | Holmes Chord | Holmes Jn to Rotherham Central Jn |
| HCM2 ℹ️ | Newcastle-under-Lyme Branch | Madeley to Silverdale |
| HCM3 | Newcastle-under-Lyme Branch | Madeley Jn to Madeley Chord Jn |
| HCN ℹ️ | Hartford Curve | Hartford LNW Jn to Hartford CLC Jn |
| HCS ℹ️ | Heaton Carriage Sidings | Heaton South Jn to Heaton North Jn (incl. Headshunts) |
| HDB ℹ️ | Hertford Loop | Wood Green South Jn (Down) to Langley Jn |
| HDC | Hereford Curve | former Rotherwas Jn to former Red Hill Jn |
| HDR | Hither Green Jn to Rochester Bridge Jn (via Dartford) | |
| HDS | Hornsey Ferme Park Sidings | |
| HDS1 | Hornsey EMU Depot | |
| HDT | Southbury Loop | Hackney Downs North Jn to Cheshunt (via Southbury) |
| HDY | Hendy Loop | Grovesend Colliery Loop Jn to Hendy Jn |
| HEB | Hertford East Branch | Broxbourne Jn to Hertford East |
| HEC ℹ️ | Heck Old Curve | Chord line connecting ECM1 and WAG1 |
| HED | Heathrow Express Depot | |
| HEG | Hartford East Jn to Hartford North Jn | |
| HEM ℹ️ | Hawthorn Colliery Branch | |
| HEN | Henley-on-Thames Branch | Twyford to Henley-on-Thames |
| HGC | Hazel Grove Chord | Hazel Grove East Jn to Hazel Grove High Level Jn |
| HGG1 | East Grinstead Branch | Hurst Green Jn to East Grinstead |
| HGL1 | Highland Main Line | Perth South Jn to Stanley Jn |
| HGL2 | Highland Main Line | Stanley Jn to Inverness |
| HGP4 | Hither Green Depot | Loco Depot |
| HGP5 | Hither Green Depot | Pre-assembly Depot |
| HGP6 | Hither Green Depot | Down Networker Berthing and Washers |
| HGP7 | Hither Green Depot | Down Yard Freight Sidings |
| HGP8 | Hither Green Depot | Grove Park Carriage Berthing Shed |
| HGP9 | Hither Green Depot | Up Networker Berthing and Washer |
| HHH ℹ️ | Blackfriars to Herne Hill South Jn | |
| HHJ | Hooton South to Helsby Line | Hooton South Jn to Helsby Jn |
| HHT | Herne Hill South Jn to Tulse Hill South Jn | |
| HHW | Hatton Curve | Hatton North Jn to Hatton West Jn |
| HIL ℹ️ | Hillhouse Quarry Branch | former Shewalton Moss GF to Hillhouse Quarry |
| HIM | High Marnham Branch | Shirebrook East Jn to High Marnham Power Station |
| HIW ℹ️ | Highworth Branch | Highworth Jn to Rover Works |
| HJB | Doncaster Avoiding Line | Hexthorpe Jn to Bentley Jn |
| HJM | Hepscott Jn to Morpeth Jn | |
| HJS | Saltend Branch | Hessle Road Jn to Saltend |
| HJW | Hounslow Spur | Hounslow Jn to Whitton Jn |
| HLD ℹ️ | Hartlepool Dock Branch | former Lancaster Road Jn to Hartlepool Dock |
| HLF1 ℹ️ | former Hall Lane Jn to Foxlow Jn | ELR change to former Hall Lane Jn |
| HLF2 ℹ️ | former Hall Lane Jn to Foxlow Jn | ELR change to Foxlow Jn |
| HLK | High Level Bridge Jn to King Edward Bridge South Jn | |
| HLL ℹ️ | Heathrow Airport Link Line | Airport Jn to Heathrow Tunnel Jn |
| HLL1 ℹ️ | Heathrow Airport Link Line | Heathrow Tunnel Jn to Heathrow Airport Terminal 4 |
| HLL2 ℹ️ | Heathrow Airport Link Line | Heathrow Tunnel Jn to Heathrow Airport Terminal 5 |
| HMN1 | Hamilton Circle | Lesmahagow Jn to former Ross Jn |
| HMN2 | Hamilton Circle | Newton, Hamilton Jn to former Ross Jn |
| HNB | Hendon Branch | Ryhope Grange Jn to South Dock |
| HNC | Hambleton North Curve | Hambleton East Jn to Hambleton North Jn |
| HND1 ℹ️ | Longbridge to Halesowen | |
| HNL1 | Hereford and Newport Line | former Redhill Jn to Maindee West Jn |
| HNL2 ℹ️ | Hereford and Newport Line | former Barton & Brecon Curve Jn to Bulmers Sidings |
| HNO | Hartford North Jn to Oakleigh Sidings | |
| HNR | Northampton Loop | Hanslope Jn to Rugby (via Northampton) |
| HNS | Heaton Norris and Guide Bridge Line | Heaton Norris Jn to Guide Bridge Station Jn |
| HOB2 ℹ️ | Haydock Chord | Haydock Branch Jn to Haydock Park (part) |
| HOK | Horrocksford Branch | Horrocksford Jn to Horrocksford |
| HOS | Holgate Jn to Skelton Jn (via Slow Lines) | |
| HOT ℹ️ | Horwich Town Branch | former Blackrod Jn to Horwich |
| HOU | Hounslow Loop | Barnes Jn to Feltham Jn (via Hounslow) |
| HPC | Hare Park Jn to Crofton West Jn | |
| HPQ | Parkeston Quay Goods Yard | |
| HPW ℹ️ | Harringay Chord | Harringay Park Jn to Harringay |
| HSA | Stratford Branch | Hatton Station Jn to Stratford-upon-Avon |
| HSC | Hambleton South Curve | Hambleton South Jn to Hambleton West Jn |
| HSE | former Archcliffe Jn to former Hawkesbury Street Jn (Dover) | |
| HSJ | former Handsworth Jn to Smethwick Jn | |
| HSL ℹ️ | Hythe and Sandgate Branch | Sandling to Saltwood Tunnel |
| HST | Glasgow City Union Line | High Street Jn to Shields Jn |
| HTG ℹ️ | Isle of Grain Branch | Hoo Jn to Isle of Grain |
| HTM ℹ️ | Shaftholme Flyover | Haywood Jn to Thorpe Marsh Jn |
| HTW ℹ️ | former Heath Town Jn to Walsall Lichfield Road Jn (excl.) | |
| HUE | Hunslet East Goods Branch | Neville Hill West Jn to Hunslet East |
| HUL1 | Leeds to Hull | Hull to former Barlby Jn |
| HUL2 | Leeds to Hull | former Barlby Jn to Selby South Jn |
| HUL3 ℹ️ | Leeds to Hull | Selby South Jn to Micklefield Jn |
| HUL4 ℹ️ | Leeds to Hull | Micklefield Jn to Leeds |
| HUN | Hunterston Low Level Branch | Hunterston Jn to NR boundary (Clydeport) |
| HWG | Hartford West Goods Curve | Hartford West Jn to Hartford North Jn |
| HXS1 | Hunts Cross to Southport (Northern Line) | Liverpool Central to Hunts Cross West Jn |
| HXS2 | Hunts Cross to Southport (Northern Line) | Sandhills Jn to Liverpool Central (Pemberton to Mersey Railway) |
| HXS3 | Hunts Cross to Southport (Northern Line) | Sandhills Jn to Southport |
| HYD | Hyndland West Curve | Hyndland North Jn to Hyndland West Jn |
| HYM ℹ️ | Healey Mills Yard |