The Marine Farming Association Inc (MFA) is a subscription based organisation, representing marine farmers in the top of the South Island of New Zealand, set up with the objective to promote, foster, advance, encourage, aid and develop the rights and interests of its members and the marine farming industry in general.

Farmers in this area of New Zealand grow approximately 80% of the marine products farmed in New Zealand. The major species include Greenshell™ mussels and king salmon. Other species include seaweeds, pacific oysters and paua (abalone). Sales from these farms exceed $200 million per year.