Found 21,624 abbreviations starting with O:

OPSY

Ounces Per Square Yard

Miscellaneous » Unit Measures

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OpSys

Operating System

Computing » Software

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OPT

Optional

Governmental » Military

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OPT

Optometry

Governmental » Military

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OPT

Opticare Health Systems, Inc.

Business » AMEX Symbols

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OPT

Outpatient treatment

Medical » Physiology

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OPT

Optimize support file (QEMM)

Computing » File Extensions

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OPT

Options

Computing » File Extensions

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OPT

Orange Port Terminal Railway

Regional » Railroads

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OPT

Ontological Paradigm Technique

Medical » Physiology

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OPT

Optimized Production Technology

Business » General

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OPT

Optional Practical Training

Community » Educational

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OPT

Organization Of Parents And Teachers

Community » Educational

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OPT

Occupational Privilege Tax

Governmental » US Government

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OPT

Observation Participation And Teaching

Community » Educational

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OPT

Optimal Purchasing Technique

Business » General

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OPT

Operations Project Team

Business » General

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OPT

Ohio Proficiency Test

Community » Educational

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OPT

Orthodox People Together

Community » Religion

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OPT

Oregon Professional Technologist

Business » Companies & Firms

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OPT

On Pace To ....

Computing » Texting

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OPT

Optical Process Test

Governmental » Military

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OPT

Optical Process Test

Academic & Science » Electronics

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OPT

Occupied Palestinian Territories

Governmental » Politics

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OPT

OPTical grade solvent

Academic & Science » Chemistry

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