Irie Ryosuke (Japanese: 入江 陵介 Irie Ryōsuke) born January 24, 1990 in Tennoji-ku, Osaka is a Japanese backstroke swimmer. He is a Kinki University student in Osaka.
He won a silver medal in the 200 metre backstroke and a bronze in the 100 metre backstroke at the 2012 Summer Olympics.
He was born in Osaka prefecture and started his actual swimming career in his junior high school years. In 2005 he won the national high school championships in 200 meter backstroke when he was a first year grade student. He made new high school student record in Japanese national championships in April 2006.
In August 2007, he attended his first world swimming competition, International Swim Meet 2007 held in Chiba, Japan. On August 22, he beat the previous high school record in 100 m backstroke with the time of 54.07 s. The next day, he beat another high school record in 200 m backstroke with the time of 1:57.03.
|2012||Men's 200 m backstroke|
|2012||Men's 4x100 m medley relay|
|2012||Men's 100 m backstroke|
|2016||Men's 100 m backstroke||7th|