Gustavo Kuerten won the singles tennis title at the 1999 Monte Carlo Open when Marcelo Ríos retired from the final with the scoreline at 6–4, 2–1.
Carlos Moyá was the defending champion, but lost in the quarterfinals to Jérôme Golmard.
Seeds The top eight seeds received a bye to the second round.
Draw
Finals
Top half
Section 1
Section 2
Bottom half
Section 3
Section 4
References
External links ATP main draw