- At the junction of Aldgate High Street with Leadenhall Street and Fenchurch Street (S. 140-O.S. 1875).
- Aldgate Ward
- Aldgate Ward School
- Aldgate Well
- Alexander's Yard
- (La) Aleye
- Alfies Lane
- Alfred Buildings
- Alfred Place
- Alfrichburi
- Alhalwenestrete
- Alienation Office
- Alkichesbury
- All Hallows
- All Hallows on the Hay, over Heywharf
- All Hallows ad Fenum
- All Hallows Barking
- All Hallows Barking Churchyard
- All Hallows Barking Vicarage
- All Hallows Colemanchurch
- All Hallows de Stanningechirche
- All Hallows Garschirch, Gracechurch, Grascherch, in Gracioustreete
- All Hallows in Parva Roperia
- All Hallows in St. Helen's
- All Hallows in the Ropery
- All Hallows Lane
- All Hallows Lane Stairs
- All Hallows le Grant
- All Hallows Lombard Street Churchyard
- All Hallows Passage
- All Hallows Pier
- All Hallows Semannescyrce
- All Hallows Staining
- All Hallows Staining School
- All Hallows Stairs
- All Hallows super Cellarium
- All Hallows the Great
- All Hallows the Great Churchyard
- All Hallows the Less
- All Hallows the Less Churchyard
- All Hallows Within the Gate of Bishopsgate
- All Hallows, Bread Street
- All Hallows, Cornhill
- All Hallows, Fenchurch
- All Hallows, Honey Lane
- All Hallows, Lombard Street
- All Hallows, London Wall
- All Hallows, Tower Street
- Allam Yard
- Allen's Court
- Allen's Rents
- Alley Gate
- Alleyn's Almshouses
- Alleys
- Alliance Assurance Co.'s Offices
- Allum Yard
- Almhouse Yard
- Almnes Lane
- Alms Alley
- Almshouses, Judd's Charity
- Almshouses, Mincing Lane
- Alnager
- (St.) Alphage Churchyard
- (St.) Alphage London Wall
- (St.) Alphege Within Bishopsgate
- Alphey Within Crepilgate
- Alsies Lane
- (St.) Alulph
- (St.) Amand
- (St.) Amandus
- Ambrose Thurstan's Key
- Amelia Place
- Amen Corner
- Amen Court
- Amen House
- Amen Lane
- America Square
- Amicable Assurance Society
- Anabaptist Meeting House
- (St.) Ancelyne
- The Anchor
- Anchor Alley
- Anchor and Harp Alley, Aldgate High Street
- Anchor and Hart Alley
- Anchor Inn
- Anchor Lane, Castle Baynard Ward
- Anchor Lane, Street, Vintry Ward
- Anchor Wharf
- Anchorites
- Anchoress
- Ancris
- Anderson's Wharf
- Andoverseld
- (St.) Andrew
- (St.) Andrew ad Sanctam Trinitatem
- (St.) Andrew Aneknappe
- (St.) Andrew Apud Turrim
- (St.) Andrew by Aldgate
- (St.) Andrew by the Wardrobe
- (St.) Andrew Castle Baynard