South Allegheny Middle/Senior High School

South Allegheny school district was formed in 1966 with the merger of Port Vue-Liberty School District, Lincoln Boro School District and Glassport School District.

With the announcement of the planned Port-Vue Liberty and Glassport merger; there was speculation as to which school's mascot and colors would be used for the new South Allegheny School District. Port Vue-Liberty had their royal blue and gold Bulldogs. Glassport had their red and black Gladiators. It is thought that the mascot was determined by the outcome of a football game between Port-Vue Liberty and Glassport in which the Glassport Gladiators won. The colors are thought to be determined in a similar way with the losing team's colors being chosen as South Allegheny's school colors.

Glassport Memorial Stadium was officially opened to the public on October 16, 1950, and as of 2010 is still used by South Allegheny. On the night of the $225,000 stadium's opening, 4243 tickets were sold—though the stadium only seats 4167—for the field's maiden football match between Glassport High School and Elizabeth High School. The Glassport Gladiators won the game, 26-6.

The football team is a member of the Class AA Interstate Conference and finished the 2008 season at 5-5, the first "non-losing" season since 1993.

• Sara Pribanic played softball for the Gladiators from 2015-2018 and was named to All-Section team junior year,
• Fran Mallick, defensive end & All Pro Player for the Pittsburgh Steelers, '65; captain and defensive end for the Hartford Charter Oaks/Knights, '66-'70, MVP '67-'70.

The South Allegheny Band participates in many local activities including community parades and concerts. The band is noted as an organization that has achieved excellence and credit for its students, school, and community. Each year the South Allegheny Band performs at several non-competitive band festivals, and for the past 39 years have hosted its own band festival, traditionally on the weekend after Labor Day. The band has also performed at Steelers and Pirates games, in addition to many Pittsburgh parades and college football games. The band will travel to Walt Disney World Resort in Florida to participate in the "Celebrate a Dream Come True" parade as part of Magic Music Days in the Magic Kingdom theme park.[6]

Consisting of students in grades 5 through 12, the South Allegheny Chorus meets during the regular school day to learn and rehearse songs for their winter and spring concerts, as well as public performances. The chorus makes frequent field trips to music-related events such as musical theater performances in Pittsburgh.

The yearbook committee, grades 11 and 12, meets daily during the regular school day, and occasionally after school, to produce a memorable high school yearbook.

2018: Little Shop of Horrors (Musical)

2018: Behind the Curtain (Junior Play)

2017: Medea (Senior Play)

2017: Beauty and The Beast (Musical)

2017: Dahtan Alley (Junior Play)

2016: "The Addams Family" (Musical)

2016: A Midsummer Night’s Dream. (Senior Play)

2016: Once Upon a Happy Ending (Junior Play)

2015: "Into the Woods" (Musical)

2015: Our Town (Senior Play)

2015: Alice and The Maltese Flamingo (Junior Play)

2014: "Grease" (Musical)

2014: The Court Caine Mutiny (Senior Play)

2014: Dorothy and the Wonder Wizard of Cos (Junior Play)

2007: "Harvey" (play)
2006: "You're A Good Man, Charlie Brown" (musical)
2005: "Honk!" (musical)
2004: "A Funny Thing Happened on the Way to the Forum" (musical)
2003: "Cinderella" (musical)
2002: "Footloose" (musical)
2001: "Bye Bye Birdie" (musical)
2000: "The Wizard of Oz" (musical)
1999: "Hello, Dolly!" (musical)
1998: "Annie" (musical)
1997: "The Music Man" (musical)

SATV South Allegheny Television is a school news program intended to inform the general student population of school events and rewards, provide fun programming alternatives, and video taping major events, as well as provide students interested in the communication industry an opportunity to learn the basics of video taping, editing, creative development, and communication technology.

The Science Fair Team goes to two Science Fairs a year. The team consists of a mere twenty people, but for the past 24 years they have always taken home awards.

The Science Society makes regular field trips to various local attractions such as the Carnegie Science Center, Pittsburgh Zoo & PPG Aquarium, Carnegie Museum of Natural History, and National Aviary in Pittsburgh, among others. Additionally, an out of state trip is conducted.

Student Council is a group of students whose main priorities are to encourage school spirit and pride. Some activities governed by the student council include the homecoming parade, bonfire, and Spirit Week; the annual Winter Formal; White-Out Day;

Class Officers are the leaders of each high school class. There are a president, vice president, secretary, and treasurer for each class. The officers design and engineer events such as the senior banquet, the concession stand at high school football games, Breakfast with Santa, prom, and Powder Puff.

Peer Helpers is a group of trained young adults who will listen, offer support and reference materials to guide others toward a healthy living. This will assist in creating a more emotionally supportive environment for the school and community.