What does ORM mean? Object-Relational Mapping ( ORM ) is a technique of accessing a relational database from an object-oriented language. Object-Relational Mapping (ORM) is a technique that lets you query and manipulate data from a database using an object-oriented paradigm. When talking about ORM, most people are referring to a library that implements the Object-Relational Mapping technique, hence the phrase "an ORM". ORM is a software that translates between database and object-oriented data representations. Learn what ORM is, how it can help you, and when you might need it for your project. Object-relational mapping (ORM) is a powerful concept that has revolutionized the way developers interact with databases. At its core, object-relational mapping creates a seamless bridge between object-oriented programming languages and relational databases.