The programming paradigm that focuses on the concept of objects is known as Object-Oriented Programming (OOP). In OOP, software is structured around data, or "objects," which represent both attributes and behaviors. This paradigm promotes the principles of encapsulation, inheritance, and polymorphism, allowing for code reusability and easier maintenance. Popular programming languages that support OOP include Java, C++, and Python, making it a dominant approach in software development. OOP enables developers to design complex applications more efficiently by modeling real-world entities.