大西洋鲑（学名Salmo salar）又名安大略鲑，是主要分布在北大西洋海域及周边河流的一种鲑鱼。

大西洋鲑的学名是由卡尔·林奈于1758年所取的。有指其种小名的拉丁文意思是「跳跃者」，但也有认为是「海水的住客」。

The Atlantic salmon (Salmo salar) is a salmon in the family Salmonidae. It is found in the northern Atlantic Ocean, in rivers that flow into the north Atlantic and, due to human introduction, in the north Pacific.

Other names used to reference Atlantic salmon are: bay salmon, black salmon, caplin-scull salmon, Sebago salmon, silver salmon, fiddler, or outside salmon. At different points in their maturation and life cycle, they are known as parr, smolt, grilse, grilt, kelt, slink, and spring salmon. Atlantic salmon that do not journey to sea, usually because of past human interference, are known as landlocked salmon or ouananiche.