The 2019–20 SM-liiga season was the 45th season of the SM-liiga, the top level of ice hockey in Finland, since the league's formation in 1975. The last two game days of the regular season were scheduled to be played in front of an empty arena due to the Finnish government advising that all public events with more than 500 attendees would be cancelled or postponed. On 13 March, the rest of the season, which included the final round of the regular season and all of playoffs, was cancelled due to the COVID-19 pandemic.

The SM-liiga, colloquially called the Finnish Elite League in English or FM-ligan in Swedish, is the top professional ice hockey league in Finland. It was created in 1975 to replace the SM-sarja, which was fundamentally an amateur league. The SM-liiga is not directly overseen by the Finnish Ice Hockey Association, but the league and association have an agreement of cooperation. SM is a common abbreviation for Suomen mestaruus, "Finnish championship".