Mount Tasman (Horo-Koau in Māori) is New Zealand's second highest mountain, rising to a height of 3497 metres. It is located in the Southern Alps of the South Island, four kilometres to the north of its larger neighbour, Aoraki/Mount Cook. Unlike Aoraki/Mount Cook, Mount Tasman sits on the South Island's Main Divide, on the border between Aoraki/Mount Cook National Park and Westland National Park. It is the highest point in Westland District.
The following is a list of the highest mountains in New Zealand, and also of some other notable mountains and hills, ordered by height.