Niall Horan

Despite ongoing rumors about who Niall Horan is dating, his father claims the One Direction star is "too busy for a girlfriend."

Rumors were rife last March when the Irish heartthrob was linked to Dublin model Zoe Whelan. The stunning brunette attended the wedding of his older brother Greg and then turned up at several One Direction gigs. But the pair denied they were anything more than friends.

The latest beauty rumored to be dating the One Direction star is British reality TV star Louise Thompson.

But Niall’s Dad told the Evening Herald his 19-year-old son is not dating anyone right now.

"If Niall had a girlfriend, I'd certainly know about it, and he's never said anything about a girlfriend. Niall is definitely single, and I hope he remains that way," Bobby told The Diary.

His father, who lives in Mullingar, said now isn’t the time for Niall to have a serious relationship.

"Niall's chock-a-block but more importantly, I think he's much too young for a serious relationship.

"I'd advise him against that," he added.