The 2018–19 SDHL Season was the 12th season of the Swedish Women's Hockey League. The season began in September 2018 and ended in February 2019. Luleå HF/MSSK were the regular season champions for the fourth season in a row, and defeated Linköping HC 3-2 in the playoff finals to be crowned playoff champions for the third time in the last four years. Göteborg HC and SDE Hockey finished at the bottom of the table, but were able to avoid relegation to Damettan in the playoffs to the SDHL.