TYR
| Acronym | Definition |
|---|---|
| TYR | Tyrosine (Amino Acid) |
| TYR | Tyrone (Amtrak station code; Tyrone, PA) |
| TYR | Tyrosinase |
| TYR | Tyrosinemia (types I, II and III) |
| TYR | Ten Year Review (various organizations) |
| TYR | The Young Riders (TV show) |
| TYR | Tyler, TX, USA - Pounds Field (Airport Code) |
| TYR | Tampereen Yliopiston Roolipelaajat (Finnish: Role-Players of Tampere University; Tampere, Finland) |
| TYR | Tyrolean Airways Austria (ICAO code) |