* Bean Sídhe (Irish) - This is the original Irish term, literally meaning "woman of the fairy mounds" or "fairy woman." It's often used in academic and historical contexts.
* Bean-sidhe (Irish) - This is another variation of the Irish term, sometimes seen with a hyphen.
* Banshie - While less common, this spelling is sometimes encountered.
* Ban Shee - This spelling is also less common but sometimes seen, particularly in older texts.
It's important to note that "Banshee" is the most commonly accepted and used spelling in modern English. The other variations are more specific to Irish language or historical usage.