:We have Emperor Meiji and not "Mutsuhito" or "Mutsuhito of Japan". Likewise, we have Emperor Taishō and not "Yoshihito of Japan", and similar for all of the 100+ other deceased emperors of Japan. Wikipedia should be consistent and use Emperor Shōwa with disambiguation pages as necessary. There is a lot of comment on "most common usage" in English. "Most common" is not necessarily "most correct". If wikipedia is to be a meaningful reference and encyclopedia, it should promote usage of the "most correct" term over what some people may feel is "most common". With the automatic re-direct function, there should not be any confusion at all if the article is titled Emperor Shōwa and the commonly used name "Hirohito" redirects to it.