Turns out that Niall has been having a secret fling with Australian actress, Olympia Valance, who has starred on Neighbours.
Olympia recently spoke to The Sun and opened up about her ongoing romance with Niall.
"We just met in Australia and we’ve been messaging ever since and yeah we have hung out together a bit. We’ve known each other for a couple of years now. He obviously spends a lot of time in Australia with his cousins. We are quite close. I see him when I come to London and he sees me when he’s in Oz," she shared.
The pair were spotted together last year at a cricket game in Australia, and she posted a sweet birthday message for him when he turned 24 last month.
"Happy birthday darlin @niallhoran" she wrote, with a lot of smiley and kissey emojis.
However, it doesn't seem like they are a thing anymore.
"I am single at the moment," she continued.
"I've been single pretty much all this year and it's been really nice. I've always had problems being on my own before and now I'm actually like, I really love this and just not having anyone to answer to. Just being free is great and that's what I really want to be - just being a free spirit," she said.