Ronald Koeman Jr. (born 23 May 1995) is a Dutch professional footballer who plays as a goalkeeper for Eerste Divisie club Telstar.

He made his debut on 29 April 2016 in an Eerste Divisie game against FC Volendam as a substitute, coming on in the 83rd minute for Xavier Mous in a 2–1 home defeat.

[4] On 10 September, he made his debut for the club in a league match against Almere City, his former team, which ended in a 1–1 draw.

He took over the goalkeeping duties from Trevor Doornbusch after head coach Andries Jonker decided to bench him due to a series of significant errors in previous games.

[6] On 13 January 2023, Koeman received his first career red card after leaving his goal and recklessly tackling Nick Koster, who was in a one-on-one situation, using an extended leg.