Twenty Mile Stand is an unincorporated community in southeastern Deerfield Township, Warren County, Ohio, United States.^[1] It lies on the old 3C Highway in Town 4 East, Range 2 North, Section 21 of the Symmes Purchase and in the center of the area known as "Landen". It is about three miles south-south west of Kings Mills, two miles southwest of Fosters, and twenty miles northeast of Cincinnati.

A post office called Twenty Mile Stand was established in 1819, the name was changed to Twentymile Stand in 1895, and the post office closed in 1904.^[2] In the 19th century, the town was a stagecoach stop 20 miles (32 km) from downtown Cincinnati, hence the name.^[3] In April 2013, the original stagecoach stop, known as the Twenty Mile House, was demolished and replaced with a modern strip mall and gas station. The house had been a fine and casual restaurant, bar and tavern for generations.^[4]