Who is Costeen Hatzi, Nick Kyrgios’ new girlfriend

Nick Kyrgios’ girlfriend has left fans with their jaws wide open after the fashion influencer shared a selfie rocking a fluoro pink bikini.

Just a few months ago, most Australians had never heard the name Costeen Hatzi — not until Nick Kyrgios publicly announced he was in a relationship with the Sydney stunner.

Since going Instagram official in December, Costeen has continued to treat her rising number of followers with sexy selfies and various bikini snaps flaunting her fit figure.

But, who exactly is the glamorous new girlfriend of the hot-headed star — and how did they meet?

Nick Kyrgios, 26 and his new girlfriend Costeen Hatzi, 21. Picture: Instagram/costeenhatzi

Costean is a Bachelor of Psychological Science graduate, who is also a home decor blogger.

She recently founded her own brand Casa Amor, which focuses on minimalist home decor, and is often seen promoting herself along with various luxury brands on her Instagram page.

Just one month after she and Nick, 26, went public with their relationship, the fashion influencer’s following skyrocketed from 20,000 to more than 50,000.

In a photo posted to her socials in September, Costean showed off her influencer potential by posing in a purple bikini top and matching G-string.

Meanwhile, another photo showed off her glowing skin, spruiking a Bali Body hydrating cream.

Costeen flaunts her toned figure in a fluoro pink and orange bikini while on holidays in California with Nick. Picture: Instagram/costeenhatzi

Costeen is a home decor and fashion influencer – she founded of Casa Amor, which focuses on minimalist home decor. Picture: Instagram/costeenhatzi

She’s continued to flood her Instagram with glamorous selfies, including one from January showing her in a tiny Peppermayo bikini while on holiday in Palm Springs.

“Colours of the season,” she wrote, tagging the clothing brand.

She flaunted her toned figure in the fluoro pink and orange set, accessorising it with several bracelets, including a Cartier bracelet given to her by Nick.

“Beautiful,” Nick commented, alongside a love heart and queen crown emoji.

“Stunning as always,” one fan wrote, while another added: “You are beautiful”.

Nick first posted a photo with Costeen on December 30 as the pair posed in a bathroom selfie at a restaurant in Sydney.

The 21-year-old from Sydney and Nick, from Canberra, made their relationship Instagram official in December after the tennis star posted this snap. Picture: Instagram/costeenhatzi

Nick called Costeen ‘The One’ and praised her for ‘bringing out the best’ in him in a series of heartfelt posts ahead of Valentine’s Day this year. Picture: Instagram/costeenhatzi

“I’m blessed. This is to the new year & a chance for all of us to get it right. We all got played with the vid tho,” he wrote alongside a laughing emoji.

The former Canberra-based world No. 13 recently told Stellar magazine his relationship with Costeen is his “easiest” one yet.

“Relationships are easy when both people are invested. It’s hard to move a couch on your own,” he said.

Nick — who raced to be with Costeen in Sydney following his Australian Open men’s doubles victory in Melbourne — described past relationships as “brutal” when you’re far away for so long.

Nick said the luxury he now has in his career is that I’m able to provide for his partner. Picture: Instagram/costeenhatzi

Costeen has since shared luxurious snaps of her new life with Nick. Picture: Instagram/costeenhatzi

“The luxury I have now in my career is that I’m able to provide for the person and if they want to travel with me they can,” he told Stellar.

So, how did the pair actually meet?

Costeen recently told her Instagram followers the story of how the pair met.

“He was apparently scrolling through Instagram and saw my business account post (a selfie of Costeen in the mirror),” she said.

“He messaged my business account asking if the mirror was available for pick-up and then messaged my personal (account) asking the same thing.”

The recently crowned Australian Open doubles champ tried to pick up something else — or more specifically, someone else — while picking up the mirror, as he confessed he was more interested in Costeen than the item itself.

“It was a professional/friendly conversation and then he came to pick up the mirror from Sydney,” she said.

“I had no idea that was all a plan, I literally thought he was buying a mirror.

“He picked up the mirror and, as he would say, ‘it was love at first sight’.”

Costeen was regularly featured during Nick’s Australian Open campaign with the pair kissing on the court and cuddling during his training sessions.

In a post from November 8, where Costeen was seen all glammed up with two friends at a restaurant, Nick commented: “I guess this is when it happened,” alongside a bunch of love heart emojis.

Nick’s last relationship ended in October, 2021. It’s not exactly clear when he began dating Costeen but he confirmed their relationship on December 30, 2021, after the pair had been spotted out and about together in Sydney.

Since then, he’s posted so much #CosteenContent that he’s created a specific Instagram Stories highlight dedicated to their romance.

Nick called Costeen ‘The One’ and praised her for ‘bringing out the best’ in him in a series of heartfelt posts ahead of Valentine’s Day this year.

Originally published as Who is Costeen Hatzi, Nick Kyrgios’ new girlfriend