The Pennyslvania Interscholastic Hockey League (PIHL) was founded in 1999 as a merger between the Western Pennsylvania Interscholastic Hockey League (WPIHL), the South Hills Interscholastic Hockey League (SHIHL), and the Lakeshore Hockey League (LKSHL).
Organized high school hockey in Western Pennsylvania dates back to 1971, when the Western Pennsylvania High School Hockey League (WPHSHL) was formed out of the Alpine Ice Chalet in Swissvale, PA. Six schools competed in the inaugural season of the WPHSHL in 1971-72: Churchill, Mt. Lebanon, Penn Hills, Shaler, Upper St. Clair, and West Mifflin North. The WPHSHL expanded to 19 teams for its second season, and new leagues began to emerge throughout the area in upcoming seasons.
The first Pennsylvania High School Hockey Championships were held in 1975 at the Glenwood Ice Arena in Erie, PA. State champions have been crowned every season since, with the lone exception of 1978, In 1981, the format of the state championships was revised to ensure that a finalist from Western PA met a Finalist from Eastern PA. This eventually led to the Western PA finalist being the Penguins Cup champion and the Eastern PA finalist being the Flyers Cup champion, after the respective NHL teams on each half of the state. The PIHL playoff champion at each level is awarded the Penguins Cup, and PIHL teams have traditionally faired very well in the state finals.
Today, the PIHL consists of over 150 teams from over 60 schools at the Varsity, Junior Varsity, and Middle School levels. The Varsity level is divided into five classificiations: AAA, AA, A, B, and C. The AAA, AA, and A classifications compete in the Penguins Cup playoffs, while the B and C levels compete for their own playoff championship. The PIHL also sanctions Junior Varsity and Middle School levels, where an optional post-season tournament caps off the year.