Nopphitam is a district (amphoe) of Nakhon Si Thammarat Province. Neighbouring districts are (from the northeast clockwise) Sichon, Tha Sala, Phrom Khiri and Phipun of Nakhon Si Thammarat Province and Ban Na San and Kanchanadit of Surat Thani Province. Nopphitam contains the northernmost part of the Khao Luang National Park, protecting a large part of the Nakhon Si Thammarat mountain range. The district has a number of natural attractions including reservoirs, waterfalls, caves and hot springs. Canoeing and rafting is available in season.