- lewisA cramp iron inserted into a cavity in order to lift heavy stones; used as a symbol of strength in Freemasonry.
- lyonThe third largest city in France; the capital of Auvergne-Rhône-Alpes.
- lyonsA town in Boulder County, Colorado.
- LughA pre-Christian Irish deity represented in mythological texts as a hero and High King of the distant past: the son of Cian and Ethniu.