- Loxton
- Lubbock
- Lucas
- Luce
- Luck
- Lucker
- Luckett
- Luckham
- Luckis
- Ludlam
- Ludlow
- Ludwell
- Luebbert
- Luen
- Anne (between 1834 and 1835 - circa 1923)
- Mary Ann (between 1828 and 1829 - )
- William (between 1824 and 1825 - circa 1909)
- Luff
- Lujan
- Luke
- Lukehurst
- Ann (before 1786 - )
- John (before 1786 - )
- Luker
- Lukes
- Lukhurst
- Lulham
- Lumb
- Lundberg
- Lunn
- Lunnon
- Lunt
- Lurfield
- Luscomb
- Lush
- Lutterell
- Lutton
- Luxford