ODL may refer to:
- Object Definition Language, specification language defining the interface to object types conforming to the ODMG Object Model
- Observations of daily living, cues that people attend to in the course of their everyday life, that inform them about their health
- Oklahoma Department of Libraries, the state library for the U.S. state of Oklahoma
- Open and distance learning, gratis distance education
- Ordnance Datum Liverpool, an ordnance datum recorded at Victoria Dock in Liverpool, England
|This disambiguation page lists articles associated with the title ODL.
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