National Historic Register properties in Harper county/parish, Oklahoma

• Buffalo City Park Pavilion (Buffalo)
• Farmers' Co-op Elevator (Buffalo)
• Feuquay Elevator (Buffalo)
• Harper County Courthouse (Buffalo)
• I.O.O.F. Building of Buffalo (Buffalo)
• Monhollow Artificial Stone House (Buffalo)
• Page Soddy (Buffalo)
• Cooper Bison Kill Site (Fort Supply)
• Beagley-Stinson Archeological Site (Laverne)
• Clover Hotel (Laverne)
• Fox Hotel (Laverne)
• Laverne's North Main Street District (Laverne)
• M.K. and T. Depot in Laverne (Laverne)
• Sharp Lumberyard (Laverne)
• Old Settler's Irrigation Ditch (Rosston)
• Patsy's Island Site (Woodward)
• Smith No. 2 Site (Woodward)