Where does “Gaoxiong” come from?

Gaoxiong (English) comes from Chinese Mandarin 高雄, from Japanese 高雄, from Min Nan 打狗.

Ancestry of “Gaoxiong”, step by step

Step	Language	Word	Meaning
1	Chinese Mandarin	高雄	—
2	Japanese	高雄	—
3	Min Nan	打狗	—

Gaoxiong — Etymology, Origin & Word History | Etymology Explorer