Dime Box is an unincorporated community in Lee County, Texas, United States. The Dime Box Independent School District serves area students and home to the Dime Box High School Longhorns. It is named after what is now called Old Dime Box, Texas.
Dime Box was visited by author William Least Heat-Moon as described in his book Blue Highways. Heat-Moon got a haircut from local barber Claud Tyler.