Ashby is an unincorporated community in Grant County, Nebraska, United States. Its elevation is 3,843 feet (1,173 m), and it is located at (42.0219276, -101.9276811). It lies along Nebraska Highway 2, 9 miles (14ý km) west-northwest of Hyannis, the county seat of Grant County. It has a post office with the ZIP code 69333.
Ashby got its start following construction of the railroad through the territory. It was named after the town of Ashby, Massachusetts by a railroad official.
The Ashby post office was established in 1908.