- L
- La Sale
- Laatz
- Lacey
- Lacy
- Ladd
- Laderman
- Laffel
- LaFon
- Lagana
- Lago
- Lahman
- Laing
- Lair
- Laird
- Lake
- Lam
- Laman
- LaMar
- Lamb
- Lamber
- Lambert
- Lamkins
- Lamma
- Lamon
- LaMont
- Lamp
- Lampe
- Lancaster
- Lance
- Landers
- Landes
- Landfear
- Landis
- Landrum
- Lane
- Lang
- Lange
- Langford
- Langley
- Lanham
- Lanier
- Lanning
- Lantz
- LaParill
- Laprevotte
- Larent
- Larkin
- Lash
- Lassiter
- Last Supper Monument
- Latham
- Lathan
- Latimer
- Lauck
- Lauer
- Laurent
- Lauston
- Lavigne
- Lawhorne
- Lawman
- Lawrence
- Laws
- Lawson
- Lay
- Lay Leigh
- Laycock
- Layman
- Laymen
- Laymon
- Layne
- Layton
- Lea
- Leach
- Leaf
- Leake
- Leaman
- Leap
- Leary
- Leasa
- Leasy
- Leavel
- Leavitt
- LeBlanc
- Leckie
- Lecomte
- Lee
- Leeber
- Leebrick
- Leecy
- Leecy Lucy
- Leedy
- Leeiel
- Leerois
- Lees
- Leet
- Leeth
- Leffel
- Legg
- Leggett
- Lehew
- Lehman
- Leigh
- Leitch
- Leith
- Lemley
- Lemon
- Lemons
- Lenney
- Lentz
- Lenz
- Lenzi
- Leonard
- Leopold
- Lepera
- Lester
- Lestz
- Leutbecher
- Levans
- Level
- Levell
- Levine
- Levinson
- Levy
- Lewallen
- Lewin
- Lewis
- Lewis-Work
- Leyh
- Libby
- Lichliter
- Liddle
- Life
- Lifee
- Liggett
- Lighliter
- Light
- Likens
- Lilley
- Lilly
- Lincoln
- Lind
- Lindamood
- Lindblom
- Linden
- Lindley
- Lindon
- Lindsay
- Lindsey
- Linebaugh
- Lineberry
- Lineweaver
- Linhos
- Linhoss
- Link
- Linka
- Linn
- Linton
- Lipes
- Lipinski
- Lipop
- Lipscomb
- Liptrap
- Liskey
- Lite
- Littell
- Litten
- Little
- Littlefield
- Litton
- Lively
- Livingston
- Livingstone
- Llacer
- Lloyd
- Loan
- Loc
- Loch
- Locke
- Lockwood
- Loewenbach
- Loewenback
- Loewner
- Lofftus
- Lofquist
- Loftine
- Lofton
- Loftus
- Logan
- Logra
- Lohr
- Lohr
- Loker
- Lokey
- Lonas
- Lonergan
- Long
- Longacre
- Longenecker
- Longley
- Looker
- Lookretis
- Lopez
- Loren
- Lorentz
- Losh
- Loso
- Loster
- Lotts
- Loucks
- Louderback
- Loudy
- Lough
- Louis
- Love
- Loveless
- Lovett
- Loving
- Lovinger
- Lowe
- Lowell
- Lowenbach
- Lowenback
- Lowenbaum
- Lowery
- Lowey
- Lowman
- Lowry
- Lucas
- Lucero
- Luck
- Lucke
- Ludholtz
- Lukens
- Lummocks
- Lumsden
- Lundberg
- Lungren
- Lunn
- Lupton
- Lurty
- Lutholtz
- Luttrell
- Lutz
- Luu
- Ly
- Lyle
- Lynch
- Lyne
- Lynn
- Lyon
- Lyons
- Lytton