| GAT | Game A Tron 
| Others |
| GAT | Game Acceleration Technology
| Others |
| GAT | Game Accelerator Technology
| Others |
| GAT | Gap, France
| Others |
| GAT | Gatling Gun
| Others |
| GAT | Gender Affirming Treatment
| Others |
| GAT | General Ability Test
| Others |
| GAT | General Achievement Test
| Others |
| GAT | General Agreement on Trade
| Others |
| GAT | General Air Traffic
| Others |
| GAT | General Any Topic
| Others |
| GAT | General Assessment Test
| Others |
| GAT | General Audit Tool
| Others |
| GAT | General Aviation Terminal
| Others |
| GAT | General Aviation Transponder
| Others |
| GAT | Generalized Algebraic Translator
| Others |
| GAT | Generate Analyze Test
| Others |
| GAT | Generic Application Template
| Others |
| GAT | Genetic Algorithm Timetabler
| Others |
| GAT | Genome Amplification Testing
| Others |
| GAT | Genomic Association Tester
| Others |
| GAT | Gerib Assistance Technique
| Others |
| GAT | German American Technologies
| Others |
| GAT | Get At Them
| Others |
| GAT | Gifted And Talented
| Others |
| GAT | GIMP Atelier This
| Others |
| GAT | Girls Advisory Team
| Others |
| GAT | GITAM Admission Test
| Others |
| GAT | Give and Take
| Others |
| GAT | Global Analysis Tables
| Others |
| GAT | Global Assessment Tool
| Others |
| GAT | Global Automotive Technologies
| Others |
| GAT | Global Aviation Training
| Others |
| GAT | Global Awards Token
| Others |
| GAT | Gluu Access Token
| Others |
| GAT | Good Attitude Thursday
| Others |
| GAT | Government Acceptance Test
| Others |
| GAT | Governmental Assistance Team
| Others |
| GAT | Graduate Assesment Test
| Others |
| GAT | Graduate Assessment Test
| Others |
| GAT | Granulocyte Agglutination Test
| Others |
| GAT | Gravid Aedes Trap
| Others |
| GAT | Great Adventure Tour
| Others |
| GAT | Greenwich Apparent Time
| Others |
| GAT | Greet Ask Thank
| Others |
| GAT | Grid Application Toolkit
| Others |
| GAT | Grip Ability Test
| Others |
| GAT | Gro A Tog
| Others |
| GAT | Group Audio Terminal
| Others |
| GAT | Grow a Tree
| Others |
| GAT | GSM, AMPS, and TDMA
| Others |
| GAT | Guaranteed Admissions Transfer
| Others |
| GAT | Guidance, Apportionment, and Targeting
| Others |
| GAT | Guided Academic Time
| Others |
| GAT | Gymnastics Association of Texas
| Others |