Former Owner
- John West, 1st Earl De La Warr1
- John Wright1
- Joseph E. Widener6
- Josephine Widener Wichfield1
- Lambertus Eerens1
- Laurence Claiborne Witten II1
- Laurent Campagne1
- Lawrence J. Schoenberg3
- Legoué1
- Lisa Norris Elkins1
- Louis César de La Baume Le Blanc1
- Ludwig Rosenthal1
- Luigi Cora1
- Luther Albertus Brewer1
- Lutheran Theological Seminary at Philadelphia1
- Lydia Thompson Morris1
- Lyon Cathedral1
- Maggs Bros Ltd2
- Mahdī ibn Muṣṭafá al-Ḥusaynī1
- Maksymilian Mielzynski1