Bayport may refer to a place in the United States:
- Bayport, Florida
- Bayport, Minnesota
- Bayport, New York
- Bayport, Wisconsin, a former town
- Bayport terminal of the Port of Houston
- Bayport Industrial District near La Porte and Pasadena, Texas
- Other uses
- Bayport (The Hardy Boys), the fictional setting for the Hardy Boys series of young-adult detective novels