Hankha (Thai: หันคา, pronounced [hǎn.kʰāː]) is a district (amphoe) in the southwestern part of Chai Nat province, central Thailand.

It was renamed in 1911 to Ban Chian after the central tambon, as the tambon Doem Bang was at the same time reassigned to the newly created Doem Bang District.

[2] Neighboring districts are (from the north clockwise) Nong Mamong, Wat Sing, Mueang Chai Nat, and Sankhaburi of Chai Nat Province; Doem Bang Nang Buat of Suphan Buri province; Noen Kham of Chai Nat Province; and Ban Rai of Uthai Thani province.

The district is divided into eight sub-districts (tambons), which are further subdivided into 99 villages (mubans).

Missing numbers are tambon which now form Noen Kham District.