Howardwick is a city in Donley County, Texas, United States.

It is on the north side of Greenbelt Reservoir, an impoundment on the Salt Fork Red River.

Texas State Highway 70 runs past the eastern side of the city, leading south 8 miles (13 km) to Clarendon, the county seat, and north 11 miles (18 km) to Interstate 40.

According to the United States Census Bureau, Howardwick has a total area of 1.9 square miles (4.9 km2), all land.

Howardwick is served by the Clarendon Consolidated Independent School District.