| Acronym | Definition |
|---|
| JOI➣Jerk Off Instructions |
| JOI➣Jewish Outreach Institute |
| JOI➣Java Objects by Interface |
| JOI➣Japan Institute for Overseas Investment (est. 1991) |
| JOI➣Joint Oceanographic Institutions, Inc. |
| JOI➣Journal of Immunology |
| JOI➣Joinville, Santa Catarina, Brazil - Federal (Airport Code) |
| JOI➣Joehnk Interior (Design) |
| JOI➣Justification Of Investment |