1999 Betty Barclay Cup – Singles
| Singles | |
|---|---|
| 1999 Betty Barclay Cup | |
| Champion | Venus Williams |
| Runner-up | Mary Pierce |
| Score | 6–0, 6–3 |
| Draw | 28 (4 Q / 2 WC ) |
| Seeds | 8 |
The 1999 Betty Barclay Cup singles was the singles event of the fifteenth edition of the Betty Barclay Cup, a WTA Tier II tournament held in Hamburg, Germany and part of the European claycourt season. Martina Hingis was the reigning champion but she did not compete that year.
Venus Williams won in the final 6–0, 6–3 against Mary Pierce.