Yokohama Football Club (横浜FC, Yokohama Efushī) is a Japanese professional football club based in Yokohama, Kanagawa Prefecture, part of the Greater Tokyo Area. The club was formed by fans of Yokohama Flügels as a protest against Flügels' merger with Yokohama Marinos in 1999, becoming the first supporter-owned professional sports team in Japan.

They are set to play in the J1 League from 2025, the top tier of football in the country, after promotion from J2 League in 2024.

Since gaining J.League membership in 2001, Yokohama spent considerable time in the second tier of the Japanese football league system. The club gained promotion to J.League Division 1 for the 2007 season after winning the Division 2 title. However, YFC were immediately relegated in the following season. After 12 years in the J2 League, they returned to Japan's top tier, now called J1 League, for the 2020 season. The team finished 15th in its first season back in the top flight. But history would repeat itself in 2021, as they were relegated to J2 after finishing the season as J1's last-place team. The team was promoted again to J1 from 2025 after one year stint second tier in 2024.