Jonathan Mulder (Hebrew: יהונתן מולדר; born 2 January 2002) is a professional footballer who plays as a left-back for Lithuanian A Lyga club Hegelmann.
[4] Mulder made his professional debut in the first team of ADO Den Haag on 20 December 2020, in a 4–2 home loss in the Eredivisie against Ajax, replacing Boy Kemper shortly after the break.
[7] He made his competitive debut for the club on 8 August, immediately making an impact in the third minute of play by providing an assist to Koen Blommestijn's goal.
[8][9] On 3 February 2023, he scored his first professional goal, which proved to be decisive in Telstar's 1–0 victory against De Graafschap.
[10] On 26 July 2023, Mulder signed a one-year contract with an option for an additional year with Eerste Divisie club TOP Oss, after a successful trial.