Yaghsi-chhī (Bông-kó͘-gí: ᠶᠠᠭᠰᠢ
ᠬᠣᠲᠠ
, Hàn-gí: 牙克石市) sī Tiong-kok Lāi-bông-kó͘ Chū-tī-khu Hulunbuir-chhī ê chi̍t ê koān-kip-chhī.