Radial can refer to:
- Vector (geometric), a line
- Radius, adjective form of
- A radial pattern is one that appears to radiate from a point, like the spokes from the hub of a wheel
- A bearing from a waypoint, such as a VOR
- Radial (radio), used to determine average elevation above mean sea level within a radio station's coverage area
- Radial artery
- Radial axle on a locomotive or carriage
- Radial engine
- Radial nerve
- Radial symmetry, one of the types of distribution of body parts or shapes in biology
- Radial tire
- Radius (bone), a bone of the forearm
- Radial set