- Lamb, Charles
- Lambert, Oliver
- Lamont (La Mont), Eilish
- Langbridge, Rosamund
- Langham, Herbert Charles Arthur
- Lanyon, Charles
- Lanyon, William Owen
- Larcom, Thomas Aiskew
- Larkin, Delia
- Larkin, James
- Larkin, Philip Arthur
- Larmor, Joseph
- Latimer, William Thomas
- Lavery, Cecil
- Lavery, John
- Law, Edward Fitzgerald
- Law, Hugh
- Lawless, John
- Lawlor, Hugh Jackson
- Lawrence, Alexander
- Lawrence, John Laird Mair
- Lawrence, William
- Lawson, John
- Lecky, Emelia
- Lecky, Thornton Stratford
- Lecky, William Edward Hartpole (pseud. Hibernicus)
- Lee, Alexander
- Lee, Samuel
- Lees, Harcourt
- Lennon, John
- Lentaigne, John Francis O'Neill
- Lepper, John Heron
- Leslie, Charles
- Leslie, John 1571-1671
- Leslie, John 1882-1916
- Leslie, John Randolph (Shane)
- Leslie, Thomas Edward Cliffe
|
- Lester, Sean
- Lethlobar
- Letts, Edmund Albert
- Lever, Charles
- Lewis, Andrew
- Lewis, Clive Staples
- Lindon, Patrick
- Lindsay, Harold A.
- Little, James
- Lloyd, Richard Averil
- Loftie, William John
- Loftus, Adam
- Logan, James
- Logue, Michael
- Lombard, Peter
- Londonderry, Lady Edith Helen Vane-Tempest-stewart
- Londonderry, Lady Frances Anne (nee Vane-Tempest)
- Londonderry, Lady Theresa Vane-Tempest-Stewart
- Long, Arthur
- Loughlin, John
- Lowry, Charles Gibson
- Lowry, Robert William
- Lowry, Strickland
- Lowry-Corry, Dorothy
- Lowry-Corry, Somerset
- Luke, John
- Lundy, Robert
- Lyle, Thomas
- Lynas, J. Langtry
- Lynd, Robert Wilson
- Lynn, Samuel Ferris
- Lyons, Francis Stewart Leland
- Lytle, James Hill and John N.
- Lyttle, Wesley Guard
|