The meaning of the name Mimir is He Who Remembers, The Wise One. The origin of the name Mimir is Scandinavian. This is the culture in which the name originated, or in the case of a word, the language.
From the Old Norse, Mimir is a figure in Norse mythology known for his knowledge and wisdom. He is beheaded during the war between the Vanir and the Æsir. Mimir has appeared as a girls name with a few bearers in Iceland recently, but is still primarily a male name. It is not in use in Scandinavia today.