Who Is Harry Styles' Sister? All About Gemma Styles

Harry Styles and Gemma Styles posed together in 'Vogue' as a surprise for their mother

Harry Styles may make headlines with his dating life, his sold-out stadium shows and his bold fashion sense, but he’s not the only Styles sibling making a mark.

Gemma Styles is Harry’s older sister, and when she isn’t cheering on her brother or posing alongside him in Vogue, she’s an environmental activist, writer, fashion designer and influencer.

Related: Harry Styles Celebrates Christmas with Mom Anne, Sister Gemma and Her Boyfriend at Home in London

Gemma often speaks out on causes she cares about, such as climate change, workers’ rights, donating blood and more. She also talks weekly with experts on topics like mental health and sustainability for her podcast, Good Influence.

In February 2024, Gemma became a mom for the first time when she welcomed a baby girl with her longtime boyfriend, Michal Mlynowski.

So, who is Harry Styles’ sister? Here’s everything to know about Gemma Styles.

She is a writer who has contributed to Glamour and Refinery29

Gemma is a writer who has been published in many different outlets in addition to her own blog. Her bylines include an open letter to online bullies published by Glamour U.K. and a voting guide she wrote for Refinery29.

She has been dating Michal Mlynowski since 2015

Since 2015, Gemma has been dating business analyst Michal Mlynowski — and one of the couple’s early dates was seeing Harry perform with One Direction. During a September 2015 performance at the Apple Music Festival, Harry addressed the crowd, saying, “I’m sorry if I seem distracted. My sister’s here on a date, and I’m trying to keep an eye on it.”

His bandmate Liam Payne added, “We’re all watching you!”

She and Mlynowski welcomed their first child in February 2024

Gemma and Mlynowski welcomed a baby girl in February 2024. They announced the big news on Instagram.

"Hello from maternity leave! Took some time off to ensure the safe arrival of our baby girl, who is adored by her whole family," the new mom wrote. "I know that this news can be difficult for many people and I’m sending you lots of love."

Harry got a whole stadium to sing “Happy Birthday” to Gemma

On Dec. 6, 2022, Gemma posted a video from her brother’s concert in Buenos Aires, Argentina, where the crowd sang “Happy Birthday” in her honor. Gemma laid text over the video that said, “70K people singing happy birthday to me,” In the caption, she added, “An extremely feed-worthy birthday memory - appreciate you!⁣”

Gemma and Harry appeared inVogue together

The fashionable siblings appeared together in Vogue in 2020. Harry shared some thoughts on fashion in his interview, telling the outlet: “There's so much joy to be had in playing with clothes. I've never really thought too much about what it means — it just becomes this extended part of creating something."

Related: Harry Styles Models a Gucci Gown as He Becomes the First Man to Land a Solo Cover of Vogue

Gemma and Harry had plans to surprise their mother with their photos in the magazine. “My mum loved to dress us up,” Gemma recalled to Vogue. “I always hated it, and Harry was always quite into it.”

She has an eyewear line

Harry’s not the only one with fashion sense in this family. Gemma has her own line of glasses and sunglasses, which can be purchased at Baxter & Bonny. “As always, my focus is on timeless shapes designed to outlast seasonal trends,” she wrote of her line. “So I’m delighted that we’re bringing back some favorites from the last collection as well as introducing these glorious new ones.”

Gemma Styles Eyewear’s Instagram account also features many of the brand’s frames that are available for purchase.

She graduated from Sheffield Hallam University in 2013

In 2013, Harry congratulated his sister on her graduation from Sheffield Hallam University. Next to a picture of the two of them, he wrote, “She's all clever and that.” The university also tweeted a picture of the siblings, congratulating Gemma and extending “a warm Sheffield welcome to her brother.”

She's one of Harry's biggest fans

Gemma has always been Harry's biggest cheerleader. In a 2016 piece for Another Man, the proud sister wrote about her younger brother's rise to fame, recalling how quickly their lives changed after Harry auditioned for The X Factor.

Though Gemma said she feared the day he was eliminated from the competition, "That call never came," she wrote. "He has just kept on winning and winning – maybe not The X Factor, but there’s no denying he’s golden."

She continued, "My baby brother never came home again. He grew up, and all of our memories became his origin story."

Over the years, Gemma has continued to support Harry, even joining him for several stops on his Love on Tour journey.

"I am a proooooud sister all day long," she captioned one Instagram video of Harry on stage from April 2022.

Her mom, Anne Twist, is "very proud" of her

In an April 2023 interview, the Styles siblings’ mom, Anne Twist, spoke to the Daily Mail about her two famous children.

Related: Harry Styles' Mom on the Star Raiding the Fridge When He's Home and How He's Still the 'Same'

“I'm very proud of both Harry and his older sister Gemma and the adults they've become," she said. "They're both really hard-working, they've got good morals and they're really kind people."

She continued, “I know it sounds like a dreadful cliche but as long as they're happy, that's the most important thing.”

She hosts a podcast called Good Influence

In addition to her work as a writer, designer and influencer, Gemma also hosts a podcast called Good Influence. “Each week, you and I will meet a guest, who’ll help us pay attention to something we should know about as well as answer some of your questions,” she wrote on her website.

Previous topics have included stress management, sustainable fashion and financial literacy. Good Influence is available on Spotify, Apple Podcasts, Google Podcasts and several other audio platforms.

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