Semih Kaya (Turkish pronunciation: [semih kɑjɑ], born 24 February 1991) is a Turkish professional footballer who plays for Turkish club Galatasaray and the Turkish national team.

Kaya has played for all levels of the Turkish national team, including the under-21 level despite being at a younger age at the time. He made his debut for senior Turkish side on 29 February 2012, playing the entire game against Slovakia in a 2–1 loss. He is part of the Turkish national team for Euro 2016.

Kaya' grandfather was Albanian and he emigrated from Macedonia to the Turkish city of İzmir. He is the youngest of three brothers.