Brian Thomas Schmetzer is an American soccer coach and former professional soccer player. He is the head coach of the Seattle Sounders FC, who play in Major League Soccer (MLS), having been assistant coach for the team until Sigi Schmid's departure in 2016. Prior to that, he coached the Seattle Sounders in the USL First Division for seven seasons, winning two championships, and played in the North American Soccer League, Major Indoor Soccer League and Western Soccer League for various Seattle teams.

Seattle Sounders FC is an American professional men's soccer club based in Seattle, Washington, United States. The Sounders compete in Major League Soccer (MLS) as a member of the Western Conference. The club was established on November 13, 2007, and began play in 2009 as an MLS expansion team. The Sounders are a phoenix club, replacing the second-division franchise that played in the American Professional Soccer League (APSL), A-League, and USL First Division (USL-1) from 1994 to 2008, and carrying the same name as the original Sounders franchise that competed in the North American Soccer League (NASL) from 1974 to 1983.