Who is Niall Horan? Niall Horan is an Irish singer and songwriter. He was born on September 13, 1993, in Mullingar, Ireland. His full name is Niall James Horan. Niall Horan made his debut as a solo artist with the release of his single “This Town” in 2016. Niall Horan gained popularity as a member of the British-Irish boy band ...