Siún

This Irish name can be used as a variant of Susan, or as a form of Siobhan, itself a feminine form of John. Once rare but more recently appearing in the Top 150 in Ireland, the name pronunciation varies slightly regionally, said with one or two syllables.

Siún appears in a classic Irish song, Siún Ní Dhuibhir , about a man's brief encounter with a woman named Siún and the fleeting nature of love.

Pronounced SHOON; SHOO-un.