IMA
- Avim (given name)
- Bimi Ombale
- I Monetary Advisory
- IMA (company)
- IMA (file format)
- Ideal mechanical advantage
- Ideomotor apraxia
- Illinois Manufacturers' Association
- Illinois Mycological Association
- Ima (BT album)
- Ima (Yvette Tollar album)
- Ima (singer)
- Ima Hogg
- Ima Lake
- Ima Winchell Stacy
- Imidazole-4-acetic acid
- Indian Medical Association
- Indian Military Academy
- Indianapolis Museum of Art
- Industrial Mutual Association
- Inferior mesenteric artery
- Institut du Monde Arabe
- Institute for Mathematics and its Applications
- Institute of Management Accountants
- Institute of Mathematics and Applications, Bhubaneswar
- Institute of Mathematics and its Applications
- Instituto Miguel Ángel
- Integrated Motor Assist
- Integrated modular avionics
- Interactive Multimedia Association
- International Marinelife Alliance
- International Mineralogical Association
- International Mycological Association
- Inverse Multiplexing for ATM
- Investment Management Association
- Irish Medical Organisation
- Irish Museums Association
- Islamic Museum of Australia
- Israel Medical Association
- Nanomantidae
- Thyroid ima artery