The 1999 Gold Flake Open was a men's tennis tournament played on outdoor hard courts in Chennai, India, that was part of the World Series of the 1999 ATP Tour.

Fourth-seeded Byron Black won the singles title.

Byron Black defeated Rainer Schüttler, 6–4, 1–6, 6–3.

Leander Paes / Mahesh Bhupathi defeated Wayne Black / Neville Godwin, 4–6, 7–5, 6–4.

This tennis-related competition article is a stub.