| Acronym | Sense | Language | Topics |
|---|---|---|---|
| IBA | Institute for Biomedical Aging Research | In English | → Research institutes → Biological sciences → Gerontology |
| IBA | International Bar Association (www.ibanet.org) | In English | → Associations → Law, jurisprudence |
| IBA | Israel Broadcasting Authority (www.iba.org.il) | In English | → Telecommunications |
| IBA | Individuele Behandeling Afvalwater | In Dutch | |
| IBA | Indole-3-Butyric Acid | In English | → Biochemistry, biophysics |