The 2019 Ykkönen was the 48th season of Ykkönen, the second highest football league in Finland. The season started on 27 April 2019. The winning team was qualified promoted to the 2020 Veikkausliiga, while the second-placed team played a play-off against the eleventh-placed team from Veikkausliiga to decide who would play in that division. The bottom team was relegated to Kakkonen.
