The term "MacNeils" typically refers to a family name of Scottish origin, derived from the Gaelic "MacNèill," meaning "son of Niall." This surname is associated with various clans in Scotland, particularly the Clan Neill, which has historical significance in the region. In addition to being a surname, "MacNeils" can also refer to specific individuals or families, such as the MacNeil family known for their contributions in various fields, including politics, arts, and business. The name is prevalent in countries with Scottish heritage, including Canada and the United States.