- Aubrees Watergate
- Auction Mart Sale Rooms
- Audeleeshalle
- (St.) Audoen
- Augustin Friars
- (St.) Augustine ad Portam
- (St.) Augustine by London Wall
- (St.) Augustine in le Eldechaunge
- (St.) Augustine next Old Fish Street
- (St.) Augustine Papey, or in the Wall
- (St.) Augustine Parvus
- (St.) Augustine Street
- (St.) Augustine Watling Street
- (St.) Augustine's Gate
- Aurifabria
- (St.) Austin
- Austin Friars
- Austin Friars Passage
- Austin Friars Square
- Austine's Rents
- Austin's Court
- Australian Avenue
- Ave Maria Lane
- The Avenue
- Ax Yard
- Axe Alley, Leadenhall Street
- Axe Inn
- Axe Yard
- Axe Yard, Lime Street
- Ayelynstrete
- Ayre's Charity Almshouses
- Baalun (Ward of Alan)
- Babeloyne
- The Back Alley, Cloth Fair
- Back Alley
- Back Alley, Bear Alley
- Back Alley, Dean's Court, St. Martin's le Grand
- Back Alley, Great Gardens, St. Katherine's
- Back Alley, Shoe Lane
- Back Alley, Three Crane Lane
- Back Alley, Three Foxes Court
- Back Alley, Yard, Little Moorfields
- Back Bear Alley
- Back Court
- Back Gravel Lane, Houndsditch
- Back Streate, Cloth Fair
- Back Street, Little Moorfields
- Back Yard
- Back, Backside, of St. Thomas Apostles
- Backhouse
- Backside of Ye Shambles
- Backwell Hall
- Bacon House
- Bacon's Inn
- Bacunysyn
- Badgers Alley
- Baermannecyrce
- The Bagnio
- Bagnio Court Street
- The Bailey
- Baily Place
- Bakehouse Court
- Baker's Alley
- Bakers' Arms Alley, Minories
- Baker's Buildings
- Bakers' Company
- Baker's Court, Half Moon Alley
- Baker's Court, Half Moon Street
- Baker's Court, Middlesex Street
- Baker's Court, Old Bethlem
- Baker's Court, Warwick Lane
- Bakers' Hall
- Baker's Yard
- Bakewell Hall
- Balam's Court
- Balding's Yard
- Baldwin's Court
- Baldwin's Gardens
- Le Ball
- The Ball, St. Martin's le Grand
- Ball Alley, Aldersgate Street
- Ball Alley, Cannon Street
- Ball Alley, Half Moon Alley, Bishopsgate
- Ball Alley, Lime Street
- Ball Alley, Lombard Street
- Ball Alley, London Wall
- Ball Alley, Sherbourne Lane
- Ball Alley, St. Katherine's
- Ball Alley, St. Paul's Churchyard
- Ball Alley, Thames Street
- Ball and Shears Court
- Ball Court, Cornhill
- Ball Court, Giltspur Street
- Ball Court, Jewry Street
- Ball Court, Mincing Lane
- Ball Court, Old Bailey
- Ball Court, Petticoat Lane
- Ball Court, St. Katherine's
- Ball Yard
- Ball Yard, Giltspur Street