Juliet Trigg Johnson House is a historic home located at Boonville, Cooper County, Missouri. It was built between 1857 and 1860, and is a 1+1⁄2-story, "T"-plan, Gothic Revival style brick dwelling. It has flared gable roofs distinguished by returns and a centered cross gable. It was built by Dr. William H. Trigg as a wedding gift for his daughter, as was the Josephine Trigg Pigott House. It was listed on the National Register of Historic Places in 1990.