The Western Development Region (Nepali: पश्चिमाञ्चल विकास क्षेत्र, Pashchimānchal Bikās Kshetra) was one of Nepal's five development regions. It was located in the west-central part of the country, with its headquarters located in Pokhara. This Development Region was divided into three parts, from south to north in order of increasing altitude: Terai, Hilly and Himalayan. Mustang, Damodar, Peri, Thaple, Ganesh are among the major ranges of the Himalayas.

It comprised three zones:

28°15′50″N 83°58′20″E/28.26389°N 83.97222°E/ 28.26389; 83.97222