- any of several game fishes of the genus Salmo, related to the salmon.
- any of various game fishes of the salmon family of the genus Salvelinus.
- any of several unrelated fishes, as a bass, Micropterus salmoides, a drum of the genus Cynoscion, or a greenling of the genus Hexagrammos.
- any of various game fishes, esp Salmo trutta and related species, mostly of fresh water in northern regions: family Salmonidae (salmon). They resemble salmon but are smaller and spotted
- any of various similar or related fishes, such as a sea trout
- any of various fishes of the Salmo or Oncorhynchus genera smaller than the salmon, esp European and American varieties naturalized in Australia
- an irritating or grumpy person, esp a woman
