"Casey Jones—the Union Scab" is an American trade union song written by Joe Hill in San Pedro, California, shortly after the first day of a nationwide walkout of 40,000 railway employees in the Illinois Central shopmen's strike of 1911. It is a parody of the song "The Ballad of Casey Jones" and is sung to its tune. The song is not historically accurate.
It has been translated into Russian by Leonid Utyosov, and into Hungarian by Szirt Együttes.