The Bonaventura Heinz House is a historic building located in the West End of Davenport, Iowa, United States.

It has been listed on the National Register of Historic Places (NRHP) since 1983.

[2] Bonaventura Heinz was born in Baden, present day Germany, and immigrated to the United States in 1845.

[3] He settled in St. Louis, Missouri before enlisting in the United States Army to fight in the war with Mexico.

They eventually moved to Davenport, where they raised four children.