The Trevitt?s Addition Historic District is a notable neighborhood in the city of The Dalles, Oregon. It was founded by Victor Trevitt, who made great contributions to the development of the said city while he was still living.

The Trevitt?s Addition Historic District is primarily notable for being the first area to have electrical and water systems in The Dalles city. It was also the first area to have a flour mill, as well as a Catholic church and a direct connection to means of transportation. The district includes the Old St. Peter?s Landmark, Original Wasco County Courthouse, and the Bennett-Williams
House.

The Trevitt?s Addition Historic District is listed on the National Register of Historic Places and is a designated US Historic District.