O  Full Forms List

Acronym	Full Form
OP	Overpowered
OCD	Obsessive-Compulsive Disorder
OCR	Optical Character Recognition
OECD	Organization for Economic Co-operation and Development
OEM	Original Equipment Manufacturer
OK	Olla Kalla / All Correct
OMR	Optical Mark Recognition
ONGC	Oil and Natural Gas Corporation
OOTD	Outfit of the Day
OPD	Outpatient Department
OPEC	Organization of Petroleum Exporting Countries
OSA	Obstructive Sleep Apnea
OTP	One-time Password
OTT	Over the Top
OAPNA	Organization of Asia and Pacific News Agency
OAU	Organization of African Unity
OCS	Overseas Communication Service
OEEC	Organization for European Economic Cooperation
OGL	Open General License
OIL	Oil India Limited
OIGS	On India Government Service
OMSS	Open Market Sale Scheme
OPEC	Organization of Petroleum Exporting Countries
OPPI	Organization of Pharmaceutical Producers of India
OSCE	Organization of European Security Council