Don Tum (Thai: ดอนตูม, pronounced [dɔ̄ːn tūːm]) is a district (amphoe) in the northern part of Nakhon Pathom province, central Thailand.

The words Don and Tum in Thai mean 'land at a slightly high elevation'.

The district is divided into eight subdistricts (tambons), which are further subdivided into 68 villages (mubans).

[3] Most of Don Tum is an agricultural area, but some of the population is engaged in junk trade.

Some parts of the profession produce cheap clothes to Pratunam Market, Bangkok.