- Laws
- Lawson
- Lawton
- Lay
- Laycock
- Layman
- Layne
- Layton
- Lazenby
- le Brun
- Mary (1242 - between 1266 and 1269)
- le Lyte
- le Scope
- Le Seelleur
- le Strange
- Ida (before 1325 - )
- John (before 1312 - )
- Lea
- Leach
- Leader
- Lealan
- Leale
- Lean
- Leaney
- Lear
- Leary
- Ann (between 1846 and 1847 - )
- Anna (between 1846 and 1847 - )
- Leat
- Leathers
- Leaver
- Leavesley
- LeBeau
- Lecky
- Ledbetter
- Ledoux
- Lee