Category:American soccer championship–winning seasons

This is a category is for club soccer seasons where they have completed the top division of American leagues in first-place as champions, including the National Association Football League (1895–1921) American Soccer League (1921–1966), the United Soccer Association (1967), the North American Soccer League (1968–1984), American Professional Soccer League (1990–1994), A-League (1995), Major League Soccer (1996–present), Women's Professional Soccer (2009–2011), and National Women's Soccer League (2013–present).