Object-oriented may refer to:
- Object-oriented programming, a programming paradigm
- Object-oriented analysis and design
- Object-oriented database
- Object-oriented operating system
- Object-oriented role analysis and modeling
- Object-oriented modeling, an approach to modeling an application at the beginning of the software life cycle
- Object-oriented user interface
- Object-oriented ontology, a 21st-century school of thought rejecting anthropocentrism
- Object-oriented writing, a literary and visual art practice developed by Travis Jeppesen