Matic Kotnik (born 23 July 1990) is a Slovenian professional footballer who plays as a goalkeeper for Greek Super League 2 club Ionikos.
On 11 June 2017, Kotnik moved abroad for the first time in his career, joining Panionios of the Super League Greece on a two-year contract.
In August 2016, Kotnik was named in Slovenia's squad for a 2018 FIFA World Cup qualifier against Lithuania.