Eric Evans is widely recognized as the individual who created and defined Domain-Driven Design (DDD).
He coined the term and introduced the comprehensive principles of DDD in his seminal work, Domain-Driven Design: Tackling Complexity in the Heart of Software, published in 2003. This foundational book laid out the concepts for an approach to software development that emphasizes a deep understanding of the business domain. DDD encourages close collaboration between domain experts and technical teams to create software that accurately reflects the real-world complexities and logic inherent in a specific domain.