Mount Calvary Cemetery is located in north-central Davenport, Iowa, United States. It was established as St. Marguerite’s Cemetery in the 1850s on 20 acres (8.1 ha) of property donated by Antoine LeClaire. At the time the cemetery lay outside the city of Davenport. Mount Calvary is in a section of the city that includes three other cemeteries: Davenport Memorial Park, Pine Hill, and Mount Nebo, which is behind Pine Hill.
The first cemetery operated by the Catholic Church in Davenport was St. Mary's Cemetery in the west end. Bishop Mathias Loras of Dubuque bought that property on January 17, 1849 from Judge G.C.R. Mitchell for $120. The Mississippi and Missouri Railroad right of way was built through the southern section of the cemetery, and St. Mary's Church was erected on the property in 1867. Eventually the cemetery became too crowded and Holy Family Cemetery was established in the west end. St. Mary's Cemetery was discontinued and the graves were moved to either Holy Family and Mount Calvary in the early 1900s.