:1999 Waldbaum's Hamlet Cup
{{Use mdy dates|date=January 2025}}
{{TennisEventInfo|1999|Waldbaum's Hamlet Cup|
| date=August 23–29
| edition=19th
| surface=Hard / outdoor
| category=International Series
| location=Long Island, United States
| champs={{flagicon|SWE}} Magnus Norman{{Cite web|url=http://www.itftennis.com/procircuit/tournaments/men's-tournament/info.aspx?tournamentid=1010004838|title=1999 Long Island|publisher=International Tennis Federation|accessdate=2 January 2015}}
| champd={{flagicon|FRA}} Olivier Delaître / {{flagicon|FRA}} Fabrice Santoro
}}
The 1999 Waldbaum's Hamlet Cup was a men's tennis tournament played on Hard courts in Long Island, United that was part of the International Series of the 1998 ATP Tour. It was the nineteenth edition of the tournament and was held from 23–29 August 1999.
Finals
=Singles=
{{main|1999 Waldbaum's Hamlet Cup – Singles}}
{{flagicon|SWE}} Magnus Norman defeated {{flagicon|ESP}} Àlex Corretja, 7–6(7–4), 4–6, 6–3
=Doubles=
{{main|1999 Waldbaum's Hamlet Cup – Doubles}}
{{flagicon|FRA}} Olivier Delaître / {{flagicon|FRA}} Fabrice Santoro defeated {{flagicon|USA}} Jan-Michael Gambill / {{flagicon|USA}} Scott Humphries, 7–5, 6–4