A Nerve Conduction Study (NCV) is a medical diagnostic test commonly used to evaluate the function, especially the ability of electrical conduction, of the motor and sensory Nerves of the human body. These tests are performed by medical specialists such as physiatrists and neurologists.

Nerve conduction velocity (NCV) is a common measurement made during this test. The term NCV often is used to mean the actual test, but this may be misleading, since velocity is only one measurement in the test suite.