Oak (stylised OAK) is an Australian pasteurised flavoured milk brand owned by a French multinational corporation, Lactalis. It was first established in 1967 in New South Wales, as the general dairy brand of the Raymond Terrace Co-operative and its successor the Hunter Valley Co-operative Dairy Company. The origin of the Oak brand goes back to 1903.[1] Oak flavoured milk was launched in Queensland, South Australia, and Victoria in 1998. It was discontinued in Victoria in 2006 but relaunched in 2010. Oak launched in Western Australia in October 2013.[2] Oak was the naming rights sponsor of the National Rugby League team, the Penrith Panthers from 2012 until 2024.[3][4]