J1
J1 or JI stands for:
- AEG JI , a German double-decker
- Auster J / 1 , a single-engine, three-seat propeller plane
- Hyundai Lantra J1, a lower middle class passenger car model, see Hyundai Lantra # Lantra (J1, 1990–1995)
- Food key for cereal products, see federal food key # Food main and subgroups (digit 1 + 2)
- JI , a Japanese launcher
- J1 League , the top Japanese football league
- Junkers J 1 , a German all-metal aircraft
- Preventive medical check-up J1 for 13- to 15-year-old adolescents, see Children's preventive medical checkup
- Primary rate access in Japan
- The human resources department of the Armed Forces Command in the Austrian Armed Forces and in the Operations Command of the German Armed Forces
- the Johnson body J 1 , the square pyramid
- the Janko group J 1
