Siann is a beautiful and unique baby name that originated from Wales. It is typically given to female babies. The name Siann is pronounced as see-ANN, with emphasis on the second syllable. In terms of variations, Sian is another spelling commonly used for this name. Siann has gained some popularity in the United States over the years, particularly in the late 90s and early 2000s. Although it may not be among the most commonly chosen names, it still holds a special charm and can make your little girl stand out from the crowd.