TBN may mean:
Media
- Trinity Broadcasting Network, an international religious television network
- The Baseball Network, former US television network
- The Buffalo News, a newspaper
Other
- The Barter Network, a commercial trading network
- Toronto Bicycling Network, a recreational cycling organization
- Total base number, an indicator for the alkalinity of lubricant oil
- Trombone, a musical instrument
- Waynesville–St. Robert Regional Airport