2015 in Finland
- President: Sauli Niinistö
- Prime Minister: Alexander Stubb (until 29 May), Juha Sipilä (starting 29 May)
- 19 April – Finnish parliamentary election, 2015 was held. As the leader of the largest party, Juha Sipilä of Centre was tasked with forming the new government coalition.
- 29 May – Coalition negotiations ware completed, leading to the formation of the Sipilä cabinet.
- 3 January – Jouko Törmänen, 60, ski jumper, Olympic champion (1980)
- 8 February
- 2 September – Simo Salminen, 82, comic actor
- Media related to 2015 in Finland at Wikimedia Commons