The Central Coast Mariners U20 is a youth soccer team based in Australia. They are affiliated with the Central Coast Mariners, a professional soccer club that competes in the A-League. The U20 team serves as a development squad for young players looking to make their mark in professional soccer.

The team competes in the National Premier Leagues NSW 2, which is a youth league that provides a platform for talented players to showcase their skills and progress to higher levels of competition. The Central Coast Mariners U20 team is known for its strong emphasis on player development and nurturing young talent.

The team's colors are yellow and navy blue, and they play their home matches at various venues in the Central Coast region of New South Wales. The Central Coast Mariners U20 team has a dedicated fan base that supports them at both home and away matches, cheering on the next generation of soccer stars as they strive for success on the pitch.