Mesa Historical Museum, History museum in Mesa, United States

The Mesa Historical Museum documents the city's development through artifacts, photographs, and interactive displays that span multiple eras of local history. The collection traces how the settlement grew from its early days into the community it is today.

The Mesa Historical Society opened the museum in 1987 to preserve the history of Mesa. Its main building served as the Lehi School, built in 1913–1914 when the area was still Lehi, Arizona. A 1930s Works Progress Administration auditorium was added, and the two-building complex was listed on the National Register of Historic Places in 2001 as the "Lehi School".

The museum's name comes from the Mesa Historical Society, which opened it in 1987. Its largest artifacts are the buildings themselves: the 1913-1914 Lehi School and a 1930s Works Progress Administration auditorium, listed together on the National Register of Historic Places in 2001 as the "Lehi School."

The museum occupies two buildings: the 1913–1914 former Lehi School and a 1930s WPA auditorium, so allow time to walk between them. The complex joined the National Register of Historic Places in 2001 as the "Lehi School". Exhibits on Spring Training baseball, begun in 2008, have expanded to venues across Maricopa County.

The museum houses a replica of an adobe schoolhouse from the 1880s filled with genuine artifacts and photographs from Mesa's first school building. This structure gives visitors a rare window into how education and daily life looked during the pioneer era.