Prior to 2022, the World Lacrosse U20 World Championship age grouping was U19.

The first U19 World Championship was sanctioned by the International Lacrosse Federation (ILF) in Adelaide, Australia, in 1988, with the U.S. defeating Canada for gold. Since then, Team USA went on to win the first nine world championships before Canada edged the U.S. in 2025. From 2008 to 2016, the U19 World Championship fell under the direction of the Federation of International Lacrosse (FIL) and beginning in 2022, under World Lacrosse.

USA Lacrosse coordinates all aspects of the U.S. Men’s National Team program.

World Championship History

Year	Location	Champion	Runner-Up	Score
1988	Adelaide, Australia	United States	Canada	12-5
1992	Long Island, N.Y.	United States	Australia	24-11
1996	Tokyo, Japan	United States	Australia	13-8
1999	Adelaide, Australia	United States	Canada	14-7
2003	Baltimore, Md.	United States	Canada	19-10
2008	Coquitlam, Canada	United States	Canada	19-12
2012	Turku, Finland	United States	Canada	10-8
2016	Coquitlam, Canada	United States	Canada	13-12
2022	Limerick, Ireland	United States	Canada	12-10
2025	Jeju Island, Korea	Canada	United States	6-5