What is the difference between a realtor and a real estate agent? Definitions and Background Realtor: a Licensed Professional In the real-estate industry, “Realtor” is often used interchangeably with “real estate agents”, but the two terms have distinct meanings. A realty agent is a professional licensed to represent buyers or seller in realty transactions. He provides guidance and facilitates both the buying process and the selling process. On the other hand, a Realtor is a real estate agent who is a member of the National Association of Realtors (NAR), a trade association that promotes the interests of real estate professionals.