| Acronym | Definition |
|---|
| IRET➣Interrupt Return |
| IRET➣Investors Real Estate Trust (est. 1970; North Dakota) |
| IRET➣Institute for Research on the Economics of Taxation (Washington, DC) |
| IRET➣Instituto Regional de Estudios en Sustancias Tóxicas (Central American Institute for Studies on Toxic Substances) |
| IRET➣Institutional Responses to Emergent Technologies |
| IRET➣Institute for Rational-Emotive Therapy (now Albert Ellis Institute) |