Simon Property Group, Inc. is an American real estate investment trust that invests in shopping malls, outlet centers, and community/lifestyle centers. It is the largest owner of shopping malls in the United States and is headquartered in Indianapolis, Indiana. Worldwide, it owns interests in 232 properties as of 2021.

Herbert Simon is an American real estate developer. He resides in Indianapolis, Indiana. He was educated at the City College of New York and is the owner of the Indiana Pacers and Indiana Fever, and chairman emeritus of the shopping mall developer Simon Property Group. In 2010, he purchased Kirkus Reviews.