The 2020 Seattle Sounders FC season was the club's twelfth season in Major League Soccer, the United States' top-tier of professional soccer. The team was under the management of Brian Schmetzer in his fourth full MLS season as head coach of the Sounders. Seattle were the reigning MLS Cup champions, having defeated Toronto FC 3–1 in the 2019 final at their home stadium, CenturyLink Field.