"The TNT Punch" is a Sailor Steve Costigan short story by Robert E. Howard. It was originally published in the January 1931 issue of Action Stories. It has been reprinted under the titles "The Waterfront Law" and "The Waterfront Wallop" since Howard's death. The story was sold to Action Stories publisher Fiction House in August 1930 for $75. The story concerns Costigan entering into a grudge match in South Africa in order to raise bail money for another boxer. Like all of the Sailor Steve Costigan stories it is told in the first person by Costigan himself.