The 1999 Next Generation Adelaide International was a men's ATP tennis tournament held in Adelaide, Australia and played on outdoor hardcourts. It was the 22nd edition of the tournament and was held from 4 to 11 January. Thomas Enqvist won his first title of the year and the 15th of his career.
Thomas Enqvist defeated Lleyton Hewitt 4–6, 6–1, 6–2
Gustavo Kuerten / Nicolás Lapentti defeated Jim Courier / Patrick Galbraith 6–4, 6–4