Costeen Hatzi is an Australian social media influencer and entrepreneur known for her work in fashion, lifestyle, and beauty. She founded Style Studio, a dress-hire business based in Sydney.
She gained popularity for her fashion sense and travel content. Costeen studied psychological sciences at Australian Catholic University. Move below to read more about Costeen Hatzi.
Who is Costeen Hatzi?
Costeen Hatzi is a well-known Instagram star and influencer from Australia.
She made her name by posting about fashion, lifestyle, and beauty across social media platforms.
What makes her different is not just her style but her entrepreneurial spirit, founding a successful dress rental company called Style Studio.
She has a strong social media presence with a large number of followers who admire her fashion and travel posts.
Costeen became especially popular after her relationship with Australian tennis star Nick Kyrgios became public.
What she shares is a mix of everyday fashion inspiration and glimpses into a glamorous lifestyle, attracting attention and admiration from fans worldwide.
This combination of business acumen, relatability, and a high-profile relationship helped build her unique appeal.
Early Life of Costeen Hatzi
Costeen Hatzi was born in Australia on May 20, 2000. She grew up in a supportive environment that encouraged creativity and ambition.
From an early age, she had an interest in fashion and beauty, which later became her career focus.
For education, she pursued a degree in psychological sciences at Australian Catholic University, a field she showed serious commitment to before fully launching her influencer career.
Costeen’s early life involved balancing traditional education with building a presence on social media, a decision that shaped her future.
Growing up in Australia contributed to her distinct style and access to the fashion industry and business opportunities suitable for her talents.
Costeen Hatzi Parents and Siblings
Costeen Hatzi was born into a close-knit family of Greek descent living in Australia. She has a younger brother named George Hatzi, who shares a supportive bond with her.
Her mother, Mary Hatzi, has appeared publicly alongside Costeen on social media, including with Kyrgios, reflecting a warm family relationship.
While Costeen maintains privacy about her father and the detailed professions of her parents, it is clear from public glimpses and social posts that her family supports her career and personal life.
Her mother Mary and brother George have been mentioned in celebrations and social media posts, showing they play an important role in her life.
The Hatzi family background is rooted in strong Greek heritage, which adds cultural richness to Costeen’s personal identity.
Though specific details about her father’s name and occupation have not been disclosed publicly, the family’s Greek roots and maternal support are known.
Costeen’s family appears to be a source of emotional support and grounding as she pursues her influencer career and entrepreneurial ventures.
The positive family environment around her has helped her stay balanced amidst the demands of public life and business.
In summary, Costeen Hatzi has a loving family with a Greek background, including her mother Mary and younger brother George, who both support her journey.
The exact details about her father remain private, highlighting her preference for keeping some family matters away from the public eye.
Costeen Hatzi Age
Costeen Hatzi is 25 years old as of 2026 because she came into the world on May 20, 2000.
At this stage, she is translating her early interests and education into a successful career.
Costeen Hatzi Education
Costeen Hatzi completed her higher education at Australian Catholic University, where she studied psychological sciences.
This academic background gave her a strong foundation in understanding people and behavior, which is useful in content creation and marketing.
While she did not pursue a career strictly in psychology, the skills she gained helped her as an influencer and businesswoman.
Balancing studies and the demands of building a brand showed her dedication and ability to multitask effectively.
Early Career and Education
After graduating in May 2021 with a bachelor’s degree in psychological sciences from Australian Catholic University, Costeen Hatzi decided to pursue her passion for fashion, lifestyle, and digital content creation.
She embraced the world of social media, quickly gaining attention for her stylish posts and approachable personality. This move marked the beginning of her professional journey as an influencer.
Social Media Influencer
Costeen built a strong social media presence, especially on Instagram and TikTok. Her content covers fashion, beauty, lifestyle, travel, and fitness.
She showcases a glamorous yet relatable lifestyle, attracting over 170,000 followers on Instagram by 2025.
Her relatable approach, combined with aspirational style, helped her stand out as a digital creator in the competitive influencer space.
Entrepreneurship: Style Studio Dress Hire
In 2023, Costeen launched Style Studio, a Sydney-based dress hire business.
The company provides luxury dresses and fashion items for rent, catering to environmentally conscious clients and those seeking designer looks for special occasions without the high cost of ownership.
Costeen has spoken about this venture as an opportunity to blend her love for fashion with sustainable business practices.
Brand Collaborations and Partnerships
Costeen’s growing influence attracted collaborations with well-known brands, including YSL Beauty, lululemon, Ralph Lauren, Bondi Sands, and Pretty Little Thing.
Through sponsored posts and brand campaigns, she leverages her platform to promote fashion and beauty products she believes in, enhancing her professional reach and income streams.
Support Role in Tennis Career
While building her career, Costeen also became known for her supportive presence alongside Nick Kyrgios during tennis tournaments worldwide.
She traveled extensively to attend matches, often posting about these experiences, and was noted as an important emotional and motivational source for Kyrgios, contributing indirectly to his career.
Balancing Multiple Roles
Costeen exemplifies the modern multi-hyphenate career, balancing social media influencing, entrepreneurship, and personal commitments.
Managing a business alongside her influencer career, she demonstrates discipline and ambition, taking advantage of opportunities that arose both independently and through her high-profile relationship.
Future Aspirations
Costeen has expressed intentions to continue expanding her brand and business ventures.
She also shows interest in exploring opportunities in television hosting and further creative projects. Her professional journey reflects a mix of passion, strategic growth, and adaptability.
What does Costeen Hatzi do for a living?
Costeen Hatzi is a social media influencer, content creator, and entrepreneur. She owns Style Studio, a dress rental company in Sydney, which rents designer dresses.
She also earns income by partnering with fashion and beauty brands for sponsored content.
Her influencer work includes fashion, lifestyle, and beauty posts across Instagram and TikTok. This diversified professional path allows her to combine creativity and business savvy.
Costeen Hatzi Boyfriend
Costeen Hatzi is currently single. She was in a well-known relationship with Australian tennis player Nick Kyrgios, which began in December 2021.
Their romance started uniquely when Kyrgios purchased a mirror from her on Instagram. They officially went public in early 2022 and soon moved in together in Sydney.
Throughout their time as a couple, Costeen was frequently seen supporting Kyrgios at major tennis matches and events, while also advancing her own fashion influencer career and managing her dress rental business, Style Studio.
The couple sparked engagement rumors over the years, with Kyrgios occasionally hinting at future plans, though Costeen consistently downplayed any immediate marriage intentions, focusing instead on being happy and healthy together.
However, by early 2025, signs of trouble appeared when both removed each other’s initials from their Instagram bios and shared cryptic social media posts hinting at a breakup.
The split was confirmed publicly by Kyrgios in June 2025, who said “things happen” and wished Costeen nothing but the best, reflecting on cherished memories.
Costeen herself acknowledged the end of their relationship but emphasized focusing on her own happiness, career, and personal well-being.
She described her life post-breakup as “chaotic” but remains positive and driven.
As of now, there are no public reports of Costeen dating anyone else. She is concentrating on growing her own business and online brand.
The ending of her relationship with Kyrgios marked a new chapter of independence and personal growth for her.
How did Costeen Hatzi and Nick Kyrgios Meet?
Costeen Hatzi and Nick Kyrgios met through Instagram in 2021 when she listed a mirror for sale.
Kyrgios messaged her about buying it and soon after visited her home to pick up the mirror. This meeting sparked a romantic connection that led to their date and relationship.
The mirror remains a symbolic item in their story, kept in their home alongside Kyrgios’ trophies.
What happened to Nick Kyrgios and Costeen Hatzi?
Nick Kyrgios and Costeen Hatzi started dating in 2021 after a unique meeting when Kyrgios bought a mirror from her Instagram.
They were a high-profile couple often spotted together at tennis events and featured in media.
By early 2025, signs of a breakup appeared with both removing each other’s initials from Instagram bios and posting cryptic messages.
Kyrgios confirmed the split in June 2025, saying “things happen” and wishing Costeen well.
Costeen also spoke about moving forward positively, focusing on her career and personal growth. The breakup was amicable, with both maintaining respect for their shared memories.
Costeen Hatzi Net Worth 2026
Costeen Hatzi has an estimated net worth of $800,000 USD as of 2026, deriving from her social media influencer career, brand partnerships, and her dress rental business, Style Studio.
She earns income from sponsored posts, collaborations with fashion and beauty brands, and her entrepreneurial ventures.
Managing a successful business while expanding her social media presence gives her multiple revenue streams.
Her travel and lifestyle content also contribute to her earning potential through brand endorsements and advertising deals.
Costeen Hatzi Height and Weight
Costeen Hatzi stands approximately 5 feet 7 inches which is equal to 170 centimeters or 1.70 meters tall. She has a slender build, weighing around 58 kilograms which is equal to 128 pounds.
Known for her fashionable appearances, she typically presents a polished and stylish look with dark hair and warm skin undertones. She carries herself with confidence, which enhances her appeal as a fashion influencer.
Social Media Presence
Costeen Hatzi has more than 170,000 followers on Instagram and a significant presence on TikTok, where she posts unboxing videos and lifestyle content.
Her social media features fashion inspiration, travel photos from locations like Greece and the Bahamas, and beauty tips.
She uses her platforms to connect with followers and promote brands. Her growing audience reflects her influence and ability to engage with a digital community.
Final Line
Finally, Costeen Hatzi’s journey is a story of ambition, creativity, and resilience.
From graduating with a degree in psychological sciences to becoming a successful social media influencer and entrepreneur, she has built a strong personal brand with Style Studio, her dress rental business.
Her relationship with tennis star Nick Kyrgios brought her into the public eye, showcasing her as a supportive partner and a positive influence on his career.
Even after their amicable split in 2025, Costeen continues to focus on her professional growth and personal well-being.
Her story inspires others to pursue their passions, balance personal and professional life, and embrace new chapters with confidence.
Readers can take away lessons on independence, following dreams, and turning opportunities into successes. Feel free to share your thoughts in the comment section below.
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