List of Famous people who are 30

Seo Ju-hyun, known professionally as Seohyun, is a South Korean singer and actress. She debuted as a member of girl group Girls' Generation in August 2007, which went on to become one of the best-selling artists in South Korea and one of South Korea's most popular girl groups worldwide. Apart from her group's activities, she has established herself as an actress, notably through her participation in the original and Korean versions of stage musicals including Moon Embracing the Sun, Gone with the Wind and Mamma Mia. She also played a supporting role in the television drama Moon Lovers: Scarlet Heart Ryeo (2016).

Andreja Pejić is a Bosnian-Australian model and actress. She was known as the world’s first fully androgynous supermodel. Since coming out as a trans woman in 2013, she has become one of the most recognisable transgender models in the world.

Parth Samthaan is an Indian television actor known for playing Manik Malhotra in Kaisi Yeh Yaariaan and Anurag Basu in Kasautii Zindagii Kay.

Robert Daniel Refsnyder is a Korean American professional baseball second baseman and right fielder for the Minnesota Twins organization. He previously played in Major League Baseball (MLB) for the New York Yankees, Toronto Blue Jays, Tampa Bay Rays, and Texas Rangers.

Nigel Ng is a Malaysian stand-up comedian based in the UK. He is popularly known for his comedic character, Uncle Roger.

Anzhelika Aleksandrovna Sidorova is a Russian pole vaulter. Sidorova won silver medals at the 2014 IAAF World Indoor Championships and 2013 European Athletics U23 Championships, and a bronze medal at the 2013 European Athletics Indoor Championships.

Andrey Yevgenyevich Lunev is a Russian professional footballer who plays for FC Zenit Saint Petersburg as a goalkeeper.

Aaron Arthur Cook is a British-born Moldovan taekwondo athlete, who has been ranked the number one in the men's −80 kg division on several occasions. He is a three-time European champion having won the −80 kg title at the European Taekwondo Championships in 2010, 2012 representing Great Britain and 2014 representing the Isle of Man, and was the world junior champion in the −78 kg division in 2008.

Hsu Shu-ching is a Taiwanese weightlifter.

Declan Patrick Gallagher is a Scottish professional footballer who plays as a centre back for Scottish Premiership club Motherwell and the Scotland national team.