Lampang is one of the northern provinces of Thailand. Neighboring provinces are (from north clockwise) Chiang Rai, Phayao, Phrae, Sukhothai, Tak, Lamphun and Chiang Mai. The old name of Lampang is Khelang Nakhon.
Lampang is located in the broad river valley of the Wang River, surrounded by mountain chains. In the Mae Mo district lignite is found and mined in open pits. To the north of the province is the 1697 m high Doi Luang.
Within the province are the national parks Tham Pha Thai, Chae Son, Doi Khun Than, as well as the Huay Tak Teak Biosphere Reserve.