Mike Adrianus Wilhelmus van der Hoorn (born 15 October 1992) is a Dutch professional footballer who plays as a centre back for Eredivisie club FC Utrecht.

[7] The 2012–13 campaign saw Van der Hoorn breakthrough as he became the first choice centre back under head coach Jan Wouters, appearing in 31 Eredivisie matches and scoring four goals.

[11] On 5 July 2013 it was announced that Van der Hoorn had transferred from Utrecht to Amsterdam for a reported fee of €3.8 million, signing a four-year contract binding him to Ajax until the Summer of 2017.

Van der Hoorn scored his first Swansea goal in a 3–1 defeat to Manchester United, heading in from a Gylfi Sigurðsson free kick.

[18] Van der Hoorn's Swansea appearances continued to be sporadic throughout the rest of the season, before a change of manager in December 2017 saw him becoming a first team regular for the first time since his arrival in South Wales.

[21] In September 2020, free agent Van der Hoorn joined Arminia Bielefeld, newly promoted to the Bundesliga, on a three-year contract.

[24] With the national under-21 team qualifying for the 2013 UEFA European Under-21 Football Championship, Van der Hoorn was selected by head coach Cor Pot to play in the tournament.