List of introduced fish in Australia

Due to its geographical situation and isolation Australia has distinct fish fauna, including many endemic species.

From the 18th century, early colonisers began introducing a number of exotic species including mammals, plant, birds and fish.

The introduction of such fish has led to serious ecological damage, most notable being the effect of common carp in the Murray-Darling Basin.

Control of exotic fish species is being undertaken by various government departments, though many problems are faced.

Introduced trout species dominate the upland reaches of rivers in southeast Australia, and may have negative effects on upland native fish like the mountain galaxias species, Macquarie perch and the unfortunately named trout cod, but due to their popularity as sport fish, lack of historical records, and loss of angling memories, their damaging effects are not widely understood.