北外叫Foreign Studies University. 上外叫International Studies University. 我google了一下foreign studies, 好像它的意思多指study abroad or study in a foreign country. 相比之下上外的翻译更make sense或是说保鲜性更强。
外语系或外语学院/大学在老美那里更多的叫dept. of modern languages/world languages/second language studies. 当然也还有不少跟不上形势的仍叫dept. of...