- loud
- louden
- loudened
- loudening
- loudens
- louder
- loudest
- loudmouth
- loud pedal
- loudspeaker
- Louganis
- Lou Gehrig's disease
- lough
- loughs
- Louis
- Louisburg
- Louisburg College
- Louise
- Louisiana
- Louisiana College
- Louisiana French
- Louisiana Purchase
- Louisiana State University-Alexandria
- Louisiana State University and A & M College
- Louisiana State University-Eunice