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