- Lamb Alley
- Lamb Court
- Lamb Court, Hart Street, Cripplegate
- Lamb Yard, Lamb's Yard, Lamb Alley, Bishopsgate
- Lambe Alley
- Lambard Hill Lane
- Lambarde Hill
- Lambeth Hill
- Lambourne Ward
- Lamb's Alley
- Lamb's Buildings
- Lamb's Chapel
- Lamb's Chapel Alley
- Lamb's Chapel Court
- Lamb's Conduit
- Lamb's Court, Abchurch Lane
- Lamb's Yard
- Lamorestrete
- Lancaster College
- Lancaster Place
- Lancaster, Soc. of
- Langbourn Chambers
- Langbourn Street
- Langbourn Ward
- The Langbourne
- Langebord
- Langthorn Court
- Larger's Yard
- Last and Ball Court
- Lauderdale Buildings
- Lauderdale Court
- Lauderdale House
- (St.) Laurence Candlewick Street
- (St.) Laurence Lundenestone
- (St.) Laurence Pountney Chapel
- (St.) Laurence Street
- (St.) Laurence Super Tamisian, next the Thames
- Laurence Lane
- Laurence Pountney Hill
- Laurence Pountney Lane
- Laurence Pountney Place
- (St.) Lawrence Alley
- (St.) Lawrence Jewry
- (St.) Lawrence Pountney
- (St.) Lawrence Pountney Churchyard
- (St.) Lawrence Pountney College
- Lays Court, St. Katherine's
- Le Neve Inn
- The Leaden Porch
- Leaden Portch
- Leadenhall
- Leadenhall Buildings
- Leadenhall Chambers
- Leadenhall Chapel
- Leadenhall Market
- Leadenhall Place
- Leadenhall Street
- Leather Lane
- Leatherdressers' Yard
- Leathersellers' Almshouses
- Leathersellers' Buildings
- Leathersellers' Company
- Leathersellers' Hall
- Le Leden Porch
- Le Ledenpentitz
- Le Ledenporch
- Lees Court
- Leg and Ball Alley
- Leg Tavern
- Legates Inn
- Leggesaleye
- Lennes Aleye
- (St.) Leonard, Foster Lane
- (St.) Leonard Eastcheap
- (St.) Leonard's Lane
- (St.) Leonard's Street
- Lerber
- Letton Street
- Levels
- Leze Court, St. Katherine's
- Liberties
- Liberties of the Tower
- Lillipot Alley
- Lily Pot Lane
- Lime Street
- Lime Street Alley
- Cornhill Wards' School
- Lime Street and Cornhill Wards' School
- Lime Street Passage
- Lime Street Square
- Lime Street Ward
- Lime Wharf
- Lime Yard
- Limeburners' Alley, Lane
- Lincoln's Inn
- Lindsey Street
- Linen Armourers
- Lion in the Wood Inn, Yard
- Lion Key
- Lion's Corner