The Van Buren County Courthouse in Keosauqua, Iowa, United States was built in 1843. It was listed on the National Register of Historic Places in 1977 as a part of the County Courthouses in Iowa Thematic Resource. It is the only building the county has used as its courthouse, and it is the oldest courthouse in Iowa. In 1845 the courthouse served as the location for a trial resulting in the first death penalty in Iowa history.
