The OVW National Heavyweight Championship is a professional wrestling heavyweight championship created and promoted by the Ohio Valley Wrestling (OVW) promotion. There have been a total of seven reigns shared between five different champions. The current title holder is EC3 who is in his first reign.

Ohio Valley Wrestling (OVW) is an American professional wrestling promotion and former developmental territory based in Louisville, Kentucky. The company is currently run by Al Snow, Matt Jones, and Louisville mayor Craig Greenberg.