Leon Balogun is a German-born Nigerian professional football defender who plays for Premier League club Brighton & Hove Albion.

He made his Bundesliga debut on 19 April 2009 for Hannover 96 in a game against Hamburger SV. After his contract with 2. Bundesliga side Fortuna Dusseldorf had been expired in summer 2014, he was without a club for three months until he joined fellow leaguer Darmstadt 98. He signed a contract until the end of the 2014–15 season. On May 22, 2018 Balogun signed Premier League club Brighton & Hove Albion.

Born to a Nigerian father and German mother, Balogun was called up by Nigeria for a March 2014 friendly against Mexico as a replacement for Joseph Yobo. On 25 March 2015, he played his second game for Nigeria in a 1–0 loss against Uganda. He played his third game for the country on 13 June 2015 when he featured in a 2–0 win over Chad in the opening game of qualifying for the 2017 African Nations Cup.