Peer Koopmeiners (born 4 May 2000) is a Dutch professional footballer who plays as a defensive midfielder for Eredivisie club AZ.
On 17 October 2020, Koopmeiners netted his first professional goal, in a 3âÂÂ2 away defeat at the hands of Jong Ajax. On 2 February 2021, he scored a bullet free-kick that helped Jong AZ to a 3âÂÂ2 victory against fellow second-tier side FC Eindhoven.
On 23 June 2021, he was promoted into the first team.
On 10 January 2023, Koopmeiners was loaned by Excelsior. On 18 July 2023, he moved on a new loan to Almere City.
He is a younger brother of Dutch international Teun Koopmeiners.