Udon Thani (Thài-gí: อุดรธานี) sī Thài-kok Isaan tē-khu (Thài-kok tang-pak) ê chi̍t-ê (Changwat), siú-hú sī Udon Thani, tāi-iok ū 146.7 bān ê jîn-kháu, thó͘-tē bīn-chek 11730.3 km².

Udon Thani Hú ê ūi-tì.