| 1 | TVA | Trans America Airlines, Inc. | Callsign: Trans-America, | USA | AVCODES |
| 2 | TVA | Trans America Airlines, Inc. | IATA: TV, Name changed from Trans International Airlines, Inc. | USA | AVCODES |
| 3 | TVA | Trans America Airlines | | | ICAO1 |
| 4 | TVA | TENNESSEE VALLEY AUTHORITY | | | PWRC |
| 5 | TVA | Tennessee Valley Authority | | USA | TRAFFIC |
| 6 | TVAB | Tekniska Verken i Linköping AB | | SE | VKM |
| 7 | TVAC | TIGER-VAC INTERNATIONAL INC | | | SCAC4 |
| 8 | TVAE | TRANSPORTES VALENZUELA | | | SCAC4 |
| 9 | TVAJ | TRANS-VAR | | | SCAC4 |
| 10 | TVAL | TRANSPORTES VALLE | | | SCAC4 |
| 11 | TVAM | TRANSPORT VALMARK INC | | | SCAC4 |
| 12 | TVAN | TANNER VAN LINES INC | | | SCAC4 |
| 13 | TVAQ | TRANSPORTES VANGELICS | | | SCAC4 |
| 14 | TVAR | TRANSPORT VARES INC | | | SCAC4 |
| 15 | TVAT | TRANSPORTES VAZQUEZ | | | SCAC4 |
| 16 | TVAU | Train à Vapeur d'Auvergne | | F | TRAFFIC |
| 17 | TVAV | TRANSPORTES VISTA AL MAR SA DE CV | | | SCAC4 |
| 18 | TVAX | Tennessee Valley Authority | added 1/1963; 7/1965-7/2005 | | NAKINA |
| 19 | TVAX | Tennessee Valley Authority | 7/65-7/2000 | | NRHS |
| 20 | TVAX | TENNESSEE VALLEY AUTHORITY | | | PWRC |
| 21 | TVAX | Tennessee Valley Authority | | | RSRV |
| 22 | TVAZ | TVA INDUSTRY | | | PWRC |
