Ko Kha (Thai: เกาะคา, pronounced [kɔ̀ʔ kʰāː]; Northern Thai: เก๋าะคา, pronounced [kɔ̌ʔ kʰāː]) is a district (amphoe) in the central part of Lampang province, northern Thailand.

Neighboring districts are (from the south clockwise): Sop Prap, Soem Ngam, Hang Chat, Mueang Lampang, Mae Tha of Lampang Province.

In 1917 the district was renamed from Sop Yao (สบยาว) to Ko Kha.

[1] The district is divided into nine subdistricts (tambons), which are further subdivided into 73 villages (mubans).

Ko Kha is a township (thesaban tambon) which covers parts of tambons Ko Kha, Sala, and Tha Pha.