Mobjack Bay is a bay on the western shore of Chesapeake Bay in Virginia in the United States. It lies between the Rappahannock River on the north and the York River on the south. The bay appears in early documents as ; it was said that echoes on the bay would mock , a term for a sailor. Captain Thomas Todd of Toddsbury, Gloucester County, a mid seventeenth century emigrant, was recorded as .
