TRA

• TRA (gene), in humans encodes the protein T-cell receptor alpha locus • Tra (gene), in Drosophila melanogaster encodes the protein female-specific protein transformer • Tra gene, a transfer gene • Triple releasing agent or serotonin-norepinephrine-dopamine releasing agent ==People==

• Trà Hòa bố để, King of Champa (in what is now southern Vietnam) 1342−1360 • Phạm Văn Trà (born 1935), Vietnamese general • Trần Văn Trà (1918–1996), North Vietnamese general • William Tra Thomas (born 1974), former US footballer ==Other==

• tRA (baseball statistic) • Taiwan Relations Act of the US, 1979 • Tarama Airport, Okinawa Prefecture, Japan (IATA code: TRA) • Tax Receivable Agreements, a type of legal contract • Theory of reasoned action, a model of persuasion • Threat and risk assessment • Tirahi language of Afghanistan, ISO 639-3 code • Constellation Triangulum Australe • Transport Research Arena, European conference • Trans rights activist, in the transgender rights movement • "Tra", a song by Bad Gyal from her 2018 album Worldwide Angel • "Tra", a song by Soto Asa featuring Bad Gyal • Technology readiness assessment • Teaching Regulation Agency, the regulator for teachers and trainee teachers in England • Taiwan Railways Administration, the former railway operator of Taiwan (now Taiwan Railway)