The 1999 Betty Barclay Cup was a women's tennis tournament played on outdoor clay courts at the Am Rothenbaum in Hamburg in Germany that was part of Tier II of the 1999 WTA Tour. The tournament was held from 26 April through 2 May 1999. Second-seeded Venus Williams won the singles title.[1] [2]
| Country | Player | Rank | Seed | |
|---|---|---|---|---|
 Czech Republic | Jana Novotná | 4 | 1 | |
| Venus Williams | 7 | 2 | ||
 Spain | Arantxa Sánchez Vicario | 6 | 3 | |
 France | Mary Pierce | 8 | 4 | |
| France | Nathalie Tauziat | 11 | 5 | |
 Belgium | Dominique Van Roost | 15 | 6 | |
| Amanda Coetzer | 16 | 7 | ||
| Spain | Conchita Martínez | 19 | 8 |
The following players received wildcards into the singles main draw:
The following players received wildcards into the doubles main draw:
The following players received entry from the singles qualifying draw:
The following players received entry from the doubles qualifying draw:
See main article: 1999 Betty Barclay Cup – Singles. 
Venus Williams defeated Mary Pierce, 6–0, 6–3
See main article: 1999 Betty Barclay Cup – Doubles. Larisa Neiland / Arantxa Sánchez Vicario defeated Amanda Coetzer / Jana Novotná, 6–2, 6–1
