The 2023 Hall of Fame Open (also known as the Infosys Hall of Fame Open for sponsorship reasons) was a men's professional tennis tournament played on outdoor grass courts. It was the 47th edition of the event, and was categorized as an ATP 250 event on the 2023 ATP Tour. It took place at the International Tennis Hall of Fame in Newport, Rhode Island, United States, from July 17 through July 23, 2023.
<sub>*per team</sub>
The following players received wildcards into the main draw:
The following players received entry from the qualifying draw:
The following pairs received wildcards into the doubles main draw: