The 1997 Waldbaum's Hamlet Cup was a men's tennis tournament played on hard courts in Long Island, United States that was part of the International Series of the 1997 ATP Tour.

It was the seventeenth edition of the tournament and was held from 18–24 August 1997.

Fifth-seeded Carlos Moyá won the singles title.

Carlos Moyá defeated Patrick Rafter, 6–4, 7–6(7–1) Marcos Ondruska / David Prinosil defeated Mark Keil / T. J. Middleton, 6–4, 6–4