Tamparan is a municipality in the province of Lanao del Sur.

According to the 2000 census, it has a population of 19,975 people in 2,879 households.

Tamparan is politically subdivided into 44 barangays.

The municipality has a clay loam soil type.

The climate is classified as Type IV which is characterized by more or less even distribution of rainfall throughout the year. Dry season is observed during the months from January to March and maximum rain period is from May to October.

Its economic base is farming and fishing. It is also known for the locally made Maranao Malong. During the period of El Nino, farmers of the municipality were greatly affected. Its economy also suffered a setback as a result of the military and MILF armed conflict.