L
- Labyrinth fish
- Ladyfish
- Lagena
- Lake chub
- Lake trout
- Lake whitefish
- Lampfish
- Lamprey
- Lancetfish
- Lanternfish
- Large-eye bream
- Largemouth bass
- Largenose fish
- Leaffish
- Leatherjacket
- Lefteye flounder
- Lemon shark
- Lemon sole
- Lenok
- Leopard danio
- Lightfish
- Lighthousefish
- Limia
- Lined sole
- Ling
- Ling cod
- Lionfish
- Livebearer
- Lizardfish
- Loach
- Loach catfish
- Loach goby
- Loach minnow
- Longfin
- Longfin dragonfish
- Longfin escolar
- Longfin smelt
- Long-finned char
- Long-finned pike
- Longjaw mudsucker
- Longneck eel
- Longnose chimaera
- Longnose dace
- Longnose lancetfish
- Longnose sucker
- Longnose whiptail catfish
- Long-whiskered catfish
- Lookdown catfish
- Loosejaw
- Lost River sucker
- Louvar
- Loweye catfish
- Luderick
- Luminous hake
- Lumpsucker
- Lungfish
- Lyretail
Read more about this topic: List Of Common Fish Names