Macneil can have a number of different meanings and spellings:
Clan MacNeil is a Scottish clan.
Al MacNeil, Canadian hockey player
Angus MacNeil, Scottish politician
Carole MacNeil, Canadian television journalist
Charles Grant MacNeil, Canadian politician
Cornell MacNeil, American baritone
Hermon Atkins MacNeil, American sculptor
Ian Roderick Macneil, American legal scholar
John MacNeil, Scottish/Australian evangelist
Karen MacNeil, American wine writer and educator
Kenzie MacNeil, Canadian politician
Kevin MacNeil, Scottish writer and poet
Neil MacNeil, American journalist
Rita MacNeil, Canadian folk singer
Robert MacNeil, Canadian television journalist
Wade MacNeil, Canadian vocalist/guitarist for the band Alexisonfire
Regan MacNeil, a character from William Peter Blatty's The Exorcist, played by Linda Blair in the 1973 movie
The MacNeil/Lehrer Newshour, former name of The NewsHour with Jim Lehrer when Robert MacNeil co-anchored
MacNeil Wikipedia (Text) CC BY-SA