The southern blue whiting (Micromesistius australis) is a codfish of the genus Micromesistius, found in the southern oceans with temperatures between 3 and 7 °C, at depths of 50 to 900 m. Its length is commonly between 30 and 60 cm, with a maximum length of 90 cm.

[1] Maximum weight is at least 1350 g.[2] A related species, the blue whiting, Micromesistius poutassou, occurs in the Northern Hemisphere.

It is most commonly filleted and served breaded or battered, but it is also well-suited to pan frying, oven baking and steaming.

It has flaky white fillets and mild flavor with broad appeal to children and adults alike.

The two disjunct populations are:[1] Most of the southern blue whiting catch comes from New Zealand's Bounty Platform and Campbell Island Rise given the large numbers there.