List of Famous people who are 30

John Benson is a Qatari born-Ghanaian footballer. He plays defender for Qatari Stars League club Al Ahli.

Gavin Mannion is an American cyclist, who currently rides for UCI ProTeam Rally Cycling.

Ian Boswell is an American off-road cyclist, who competes in gravel mountain bike racing for the Wahoo Frontiers team. Prior to this, Boswell competed as a road racing cyclist between 2010 and 2019 for Bissell (2010), Bontrager–Livestrong (2011–2012), Argos–Shimano (2012), Team Sky (2013–2017) and Team Katusha–Alpecin (2018–2019).

Gareth Andre Theodore Henry is a Jamaican badminton player. He competed at the 2014 Commonwealth Games; and 2011 and 2015 Pan American Games. Henry was part of the national team that won the men's team bronze at the 2018 Pan Am Men's Team Championships. Partnered with Samuel O’Brien Ricketts, he clinched the men's doubles gold at the 2018 Central American and Caribbean Games.

Declan John Galbraith is a British musician. He is best known for his 2002 hit single, "Tell Me Why", which peaked at #29 in the UK Singles Chart.