Hannibal High School is a public high school located in Hannibal, Missouri. HHS serves grades 9 through 12 and is the only high school in Hannibal School District #60.
The first public high school in Hannibal was established in 1866. A new building was constructed in 1934; a number of wood doors to classrooms were replaced in late 2018. HVAC units were added in mid 2019.
HHS athletic teams are nicknamed the Pirates and compete in the North Central Missouri Conference. The school has won two state championships, taking the 1930 Class B boys track and field title as well as the 1990 Class 3A/4A softball championship. In 2008, HHS acquired turf field material from the St. Louis Rams.
Hannibal has a competitive show choir, "River City Revue".