Run On or run-on may refer to:

Run-on, in hydrology, the process or measure of surface water infiltration Run-on sentence, a grammatical construction Nuclear run-on, a test to identify genes Run On (band) "God's Gonna Cut You Down" (also known as "Run On" or "Run On for a Long Time"), a folk song covered by many artists Run On (TV series), a South Korean television series

See also On the Run (disambiguation)