Sponsored Links Theo Horan dating Whom? Theo Horan is currently single Theo Horan Complete Dating History Add new Post Sponsored Links Theo Horan wiki Login to Edit Bio: Internet phenomenon who was famous as soon as he was born due to being the nephew of One Direction star Niall Horan. He was born in Mullingar and was christened on November 9, 2013.Date of Birth: 16 Jul, 2013Zodiac Sign: CancerPlace of Birth: Mullingar, IrelandAge: 10 years oldProfession: Family Member Show more bio data > Theo Horan Latest Videos