Isaac Fripp House Ruins is a historic house ruin and archaeological site located on Saint Helena Island near Frogmore, Beaufort County, South Carolina. The ruins are located at Bay View overlooking the junction of Chowan Creek and the Beaufort River. The two-story, tabby house dates to the early- to mid-19th century. It is associated with Isaac Fripp, a planter of sea island cotton and other staples on St. Helena Island.