- Lodwick
- Lofas
- Lofgran
- Lofting
- Logan
- Logsdon
- Lomax
- Lombard
- Lone
- Long
- Longbotom
- Longcluse
- Longdin
- Longhurst
- Longley
- Longsdorf
- Longstaff
- Longworth
- Loomis
- Lord
- Lorentz
- Lorimer
- Losee
- Loska
- Loud
- Lough
- Loughlin
- Loughman
- Louttit
- Louw
- Love
- Loveday
- Lovejoy
- Loveland
- Harriet (between 1819 and 1820 - )
- Jane (circa 1845 - circa 1910)
- William (between 1804 and 1805 - )
- Lovell
- Lovely
- Lovering
- Lovesy
- Lovett
- Lovshin
- Low
- Lowden
- Lowdon
- Ann (circa 1854 - )
- Annie (circa 1854 - )
- Eliza (1826 - circa 1899)
- John (circa 1852 - )
- Mary (circa 1851 - circa 1883)
- Thomas (between 1819 and 1820 - circa 1855)
- Lowe
- Lower
- Lowerison
- Lowes
- Lowman
- Lowry
- Lowther
- Lowton