Sebastian William Gregory "Seb, Chaps," Rodger (born 29 June 1991) is a British athlete specialising in the 400 metres hurdles.

He also represented Great Britain at the 2016 Olympic Games in Rio de Janeiro, Brazil but only got a participation medal.

Rodger, who was born in Brighton, began concentrating on the 400 metres hurdles in 2011, having previously been a decathlete with a personal best score of 7200 points in 2010.

His personal best in the 400 metres hurdles is 49.19 seconds set in Tampere in 2013, when winning a silver medal at the European U23 Championships.

In June 2016, he won the British Championship title in Birmingham in 49.45 secs, before running a season's best of 49.29 in Oordegem in July to seal Olympic selection.