GAT
- Aspartic acid
- C7.GAT protein
- Fisherman's Gat
- GABA transporter
- GAT (group)
- GATT
- Galactoside acetyltransferase
- Gat (hat)
- Gat (landform)
- Gat (music)
- Gat (surname)
- Gat (title)
- Gat Rimon
- Gat Stires
- Gat air pistol
- Gat, Croatia
- Gat, Iran
- Gat, Israel
- Gath (city)
- General Achievement Test
- Global Academy of Technology
- Glycine N-phenylacetyltransferase
- Graduate Assessment Test
- Gát utca
- Hat, Azerbaijan
- Johnny Gat
- Kenati language
- Khat
- Kiryat Gat
- Rust (programming language)
- Veerse Gat