MacNeil is a surname of Scottish origin, often associated with the Gaelic name "MacNèill," meaning "son of Niall." It is commonly found in Scotland and among Scottish descendants worldwide. The name is linked to various clans, particularly the Clan MacNeil, which has a rich history and heritage. In addition to being a surname, MacNeil can refer to several notable individuals, including MacNeil/Lehrer NewsHour co-founder Jim Lehrer. The name is also associated with various places, such as MacNeil Island in the South Shetland Islands, showcasing its geographical significance.