Diallang Jaiyesimi (born 7 May 1998) is an English professional footballer who plays as a winger for EFL League One side Leyton Orient.

Having been on trial with Norwich City, he then signed his first professional contract with the club in January 2016, playing in their U23 team, before taking the opportunity of a season long loan with Grimsby Town in League Two.

[3] He was captain of the Dulwich Hamlet Under-18s, and also made five first team appearances, making his debut in a 2–0 victory in the Alan Turvey Trophy over Thamesmead Town in August 2015.

[6] Jaiyesimi was Norwich City Under-23s' joint top scorer that season with eight goals in 33 appearances, finding the net against Wolves, Aston Villa, Everton, Fulham and Newcastle United U23s.

[12] In October 2018, Jaiyesimi was ruled out for the remainder of the 2018–19 season with a serious knee injury,[13] and returned to his parent club during the January transfer window.