English abbreviations from otd to otl
- OTD (Off the derech (referring to an Orthodox Jew who has stopped practicing the tenets of his or her faith))
- OTDC (Overseas Trade Development Council)
- OTDF (Outage Transfer Distribution Factor)
- OTDR (Optical Time Domain Reflectometry)
- OTE (Open Transaction Environment)
- OTEA (Operational Test and Evaluation Agency (US))
- OTEC (ocean thermal energy conversion (electricity))
- OTES (Orian Technology Engine Software)
- OTF (Of The Film)
- OTG (Worthington Municipal Airport)
- OTH (North Bend Municipal Airport)
- OTH-B (Over-The-Horizon Backscatter (Radar))
- OTH-T (Over The Horizon - Targeting)
- OTHT (Over-The-Horizon Targeting)
- OTI (Office of Transition Initiatives (United States Agency for International Development))
- OTIC (Operations and Tactics Instructor Course)
- OTIF (Ohio Teacher Incentive Fund)
- OTIP (Operational Testing Implementation Plan)
- OTIS (Online Teacher Information System)
- OTJAG (Office of the Judge Advocate General)
- OTJT (On the Job Training)
- OTK (Over The Knee)
- OTKSL (One Time Key Subsidy Lock)
- OTL (Operations Team Leader)