i back up Dawei,欧汉，欧 means Europe and 汉means China.so this name is perfect explaination for you.

it can be 欧汉恩

Mye be 奥尔汗

敖克寒 or 敖寒 is also OK. 敖(ao2)is a traditional chinese family name. 克(ke4) is a word expressing your position in the family hierarchy. and 克's chinese meaning is overcome or surmount. but it can save in spoken chinese as usual.寒(han2) chinese meaning is cold or chilliness, It's very familiar in chinese name. 顶风傲雪,不畏严寒.

奥克涵