- L
- L*
- L%
- Lˉ
- Labial
- Labialisation
- Labial-palatal
- Labial-velar
- Labiodental
- Labiovelar
- Laminal
- Laryngograph
- Larynx
- Lateral
- Lateral approach
- Lateral release
- Lax
- Leading tone
- Lect
- Lenis
- Lenition
- Lexical conditioning
- Lexical incidence
- Lexical item
- Lexical phonology
- Lexical Rule
- Lexical stress
- Lexical tone
- Liaison
- Lingual
- Linguolabial
- Linking r
- Lip reading
- Liquid
- Location
- Locus
- Logogram
- Loudness
- Low
- Lowering
- Low fall
- Low rise
- Lx
- Lyman’s law