IOP may refer to:
Organizations
- Institute of Optronics, a Pakistani technical organization
- Institute of Physics, London-based professional association for physicists
- IOP Publishing, its publishing company
- Institute of Physics, Bhubaneswar, an Indian research institute
- Institute of Psychiatry, Psychology and Neuroscience, a school of King's College London, England, previously known as Institute of Psychiatry (IoP)
- Institute of Play, an American educational corporation
Science and technology
- UGV Interoperability Profile
- Cromemco IOP, an input/output processor S-100 card
- Intraocular pressure, the fluid pressure inside the eye
- Intensive outpatient program, a rehabilitation therapy
Other uses
- Independent Olympic Participant: IOC country code
- Integrated Options Portfolio, a portfolio of investments allowing the owner to change those investments
- Isle of Palms, South Carolina, US
- Italian occult psychedelia, a subgenre of Italian psychedelic music
- Industry on Parade, 1950s era sponsored television series of films
See also
- Institute of Physics (disambiguation)
- Institute of Politics (disambiguation)
- IOPS, input/output operations per second