OTE is the national telecommunications provider of Greece.
OTE may also refer to:
- Ocean thermal energy conversion, a renewable energy source
- Oda of Haldensleben (978–1023), daughter of the Margrave of the North March, Theoderich
- On-target earnings, a feature in some job adverts
- Operational Test and Evaluation (OT&E), as in the U.S. Operational Test and Evaluation Directorate
- Optical Telescope Element, a sub-section of the planned James Webb Space Telescope
- Ordinary Time Earnings, the basis used to determine mandatory employer superannuation contributions in Australia