The Evanston Main Post Office in Evanston, Wyoming was built in 1905 as part of a facilities improvement program by the United States Post Office Department. The post office in Evanston was nominated to the National Register of Historic Places (NRHP) as part of a thematic study comprising twelve Wyoming post offices built to standardized USPO plans in the early twentieth century. It was NRHP-listed as U.S. Post Office-Evanston Main.

• Photographs of the Evanston Post Office at the National Park Service's NRHP database
• Evanston Main Post Office at the Wyoming State Historic Preservation Office
• Evanston Main Post Office at the National Archives and Records Administration