- Mabsons
- Mac's Place
- Macworth Inn
- Maden Lane
- La Maderhawe
- Madock's Rents
- (St.) Magnus the Martyr
- Magnus Martirus Wharf
- Magpie Alley
- Magpie
- Magpy Alley
- Magpy
- Magpy Inn
- Magpy Yard, Bishopsgate
- Magpye
- Magpye Alley, Fenchurch Street
- Magpye Court
- Maid Court
- Maiden Court
- Maiden Lane
- The Maidenhead
- Maidenhead Alley
- Maidenhead Alley, Grub Street
- Maidenhead Alley, St. Katherine's
- Maidenhead Court
- Maidenhead Court, Maiden Lane
- Maidenhead Yard
- Maidenhead Yard, Inn
- Maioneslane
- Mairmaid Court, Warwick Lane
- Mairmaid Inn, Great Carter Lane
- Mallet's Court
- (Abbot of) Malmesbury Inn
- Manchester Avenue
- Manchonlane, Mangonelane
- Manimanelane
- Maninvelane
- Manionelane
- Manor
- Manor Row
- Mansell Passage
- Mansell Street
- Mansion House
- Mansion House Buildings
- Mansion House Place
- Mansion House Station
- Mansion House Street
- Maps of London
- (St.) Margaret Bridge Street
- (St.) Margaret Croked Lane
- (St.) Margaret de Brugge
- (St.) Margaret de Froscherche, by London Bridge
- (St.) Margaret Fish Street Hill
- (St.) Margaret Friday Street
- (St.) Margaret in Breggestrate
- (St.) Margaret Lane
- (St.) Margaret Lothbury
- (St.) Margaret Lothbury, Churchyard
- (St.) Margaret Moses
- (St.) Margaret near Rederesgate
- (St.) Margaret Pattens
- (St.) Margaret Pattens Churchyard
- (St.) Margaret Pattens Lane
- (St.) Margaret Pattens Parsonage
- (St.) Margaret prope piscariam, ad Pontem
- (St.) Margaret versus Turrim
- (St.) Margaret's Lane
- (St.) Marie at the Holle, Hupehulle
- Marine Square
- Mark Lane
- Mark Lane Station
- Markes Aley
- Market Buildings
- Market Passage
- (St.) Mark's Alley
- Marlow's Rents
- Marnersynne
- Marowe Key
- Marowlowes Key
- Marroys Key
- Mart Lane
- Marteley's Alley
- Marthe Lane
- Martilane
- (St.) Martin Baremannechurch, Bermancherche
- (St.) Martin by the Thames
- (St.) Martin Candlewick Street
- (St.) Martin Churchyard
- (St.) Martin de Garlekhuthe
- (St.) Martin in the Jewry
- (St.) Martin Ironmonger, Ismonger Lane
- (St.) Martin le Grand
- (St.) Martin le Grand, Street
- (St.) Martin Ludgate
- (St.) Martin Morgan
- (St.) Martin Orgar
- (St.) Martin Orgar Churchyard
- (St.) Martin Orgar Lane
- (St.) Martin Orgar Rectory
- (St.) Martin Outwich