The 1999 Croatian Bol Ladies Open was a women's tennis tournament played on outdoor clay courts in Bol, Croatia that was part of the Tier IV category of the 1999 WTA Tour. It was the sixth edition of the tournament and was held from 26 April until 2 May 1999. Fourth-seeded Corina Morariu won the singles title and earned $22,000 first-prize money.
See main article: 1999 Croatian Bol Ladies Open – Singles. 
Corina Morariu defeated 
Julie Halard-Decugis 6–2, 6–0
See main article: 1999 Croatian Bol Ladies Open – Doubles. Jelena Kostanić / 
Michaela Paštiková defeated Meghann Shaughnessy / Andreea Vanc 7–5, 6–7(1–7), 6–2
| Country | Player | Rank | Seed | |
|---|---|---|---|---|
| France | Julie Halard-Decugis | 21 | 1 | |
| Iva Majoli | 32 | 2 | ||
| Cara Black | 35 | 3 | ||
| United States | Corina Morariu | 38 | 4 | |
| France | Sarah Pitkowski | 36 | 5 | |
| France | Amélie Cocheteux | 58 | 6 | |
 Romania | Cătălina Cristea | 69 | 7 | |
| United States | Meghann Shaughnessy | 68 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the singles qualifying draw:
The following player received entry as a lucky loser:
