Paris Gibson Square Museum of Art

Paris Gibson Square Museum of Art (also known as The Square, or PGSMoA), is an art museum located at 1400 First Avenue North in Great Falls, Montana, in the United States. Its building was constructed in 1896 to house the city's first high school, Great Falls High School (later known as Great Falls Central High School). The high school moved to new quarters in 1931, at which time the building was renamed Paris Gibson Junior High School. The junior high school vacated the premises in 1975 for a new building. In 1977, Paris Gibson Square Museum of Art was formed, and it took ownership of the building. It is one of twelve museums in the city. The structure has been listed on the National Register of Historic Places since September 1976.

The museum focuses primarily on contemporary art by artists from the region. Much of its collection consists of folk art, abstract art, postmodern art, and functional artwork such as jewelry. In addition to two floors of galleries, the museum also hosts an outdoor sculpture garden.

(The structure should not be confused with the Roman Catholic parochial school also named Great Falls Central High School. The Square should also not be confused with Paris Gibson Education Center, an alternative high school which opened in 2007).