United States women's junior national softball team is the junior national under-18 team for United States.
The United States made their ISF Junior Women's World Championship debut in 1981, and finished in second place. The team competed at the 1985 ISF Junior Women's World Championship in Fargo, North Dakota and finished in third place. The team competed at the 1987 Junior Women's Softball World Championship in Oklahoma City, Oklahoma and won their first gold medal. The team competed at the 1991 ISF Junior Women's World Championship in Adelaide, Australia where they had 11 wins and two losses, and finished in second place. The team competed at the 1995 Junior Women's Softball World Championship in Normal, Illinois and won their second gold medal. The team competed at the 1999 ISF Junior Women's World Championship]] in Taipei, Taiwan and finished in second place.
The team competed at the 2003 ISF Junior Women's World Championship in Nanjing, China and finished in second place. The team competed at the 2007 ISF Junior Women's World Championship in Enschede, the Netherlands and won their third gold medal. The team competed at the 2011 ISF Junior Women's World Championship in Cape Town, South Africa and won their fourth gold medal. The team competed at the 2013 ISF Junior Women's World Championship in Brampton, Ontario and finished in second place.
The United States won their record fifth consecutive, and the program's ninth overall, U-18 Women's Softball World Cup in 2025. They also set a record 48-game winning streak at the World Championship.