Of Irish Gaelic origin.
From the name Niall, which most sources refer as an Irish name.
Several meanings of the name are mentioned by different sources: champion, passionate, cloud.
Viking settlers in Ireland used the name in the form of Njal.
Alternative forms of the name are: Neal, Nigel, Neils, Niles, Nil, Nels.
Famous bearers are Neil Young, Neil Diamond, Neil Tennant, Neil Armstrong, Neil Sedaka, Neil Byrne, Neil Simon, Neil Patrick Harris.
Neil Alden Armstrong was an American astronaut, and he was the first man to walk on the moon, during the first manned mission of the “Apollo 11”, in 1969.