Allison is a feminine given name of English origin. From the middle of the 20th century, it has primarily been used as a variant of the feminine name Alison. However, prior to that, it was used as an uncommon masculine name, derived from the English and Scottish surname Allison.EtymologyThe name Alison is a Norman French diminutive of Aalis, which is itself a short form of the Germanic name Adalheidis (see Adelaide). The Middle English form was Alisoun. The variant spelling Allison is the most common form in the United States. Other variations include Alisson, Allyson, Alyson, and others. The name is first recorded in Scotland in the 12th century and was popular until the early 19th century.Notable BearersNotable bearers include Allison Janney, an American actress known for her roles in The West Wing and Mom, and Allison Williams, an American actress and singer known for her role in Girls. In sports, Allison Schmitt is an American Olympic swimmer. The name has also been used in literature, such as Allison Reynolds in the film The Breakfast Club.Cultural SignificanceAllison has been a popular name in English-speaking countries, particularly in the United States where it ranked among the top 50 names for girls in the late 20th and early 21st centuries. The name's versatility as both a feminine and masculine name, though now predominantly feminine, reflects its dual origins from the medieval nickname Alison and the surname Allison.Meaning: Variant of Alison, ultimately from Germanic Adalheidis (noble kind)Origin: English, from Norman French and Germanic rootsType: Feminine given name (historically also masculine)Usage Regions: English-speaking countries, especially the United States and Scotland