The Southern Ontario Junior Hockey League (SOJHL) is a Junior level ice hockey league sanctioned by the Ontario Hockey Association based out of Southwestern Ontario. As of the 2012-13 season, the SOJHL has been promoted to the Junior C level.
Founded in the 1960s as the Shamrock Junior D Hockey League. In 1969, the League would change its name to the Western Junior D Hockey League and its champion would go on to win eleven of the next nineteen provincial championships. In the Summer of 1985, the North Junior D Hockey League would fold, leaving the Western League and the Southern Counties Junior D Hockey League. In 1988, the SCJDHL would fold and its remaining teams joined the Western League. Bloated to nineteen teams, the league would continue on as the only Junior D league in Ontario. In 1991, the league became the OHA Junior Development League. In 2006, in an attempt to gain promotion to Junior C, the league dropped any reference of Junior D or Development and renamed itself the Southern Ontario Junior Hockey League.
The winner of the SOJHL's playoffs earns the Ontario Hockey Association Cup, but this may change soon. The skill level of the SOJHL is comparable to the Eastern Ontario Junior C Hockey League. During the summer of 2006, the Yeck Conference applied to break off from the league and start their own Junior C league, but were turned down by the OHA. A talented and entertaining league, the SOJHL has a long standing tradition of the OHA in the Southwestern Ontario region.
The SOJHL downsized extensively for the 2008-09 season, losing Mitchell, West Lorne, and Central Elgin. The league also reformatted into three divisions.
The SOJHL saw the Central Elgin franchise return, this time as the Port Stanley Sailors, for the 2009-2010 season.
As of 2012, the SOJHL is in talks with the OHA as to the future of the league. The 2012-13 season will be played at the Junior C level and the league will be folded and divided up into other leagues in the summer of 2013.