| Date: | 3–8 January |
| Edition: | 20th |
| Category: | WTA Tier IV |
| Draw: | 32S / 16D |
| Prize Money: | USD $140,000 |
| Location: | Auckland, New Zealand |
| Surface: | Hard / Outdoor |
| Venue: | ASB Tennis Centre |
| Champs: |  Katarina Srebotnik |
| Champd: |  Shinobu Asagoe / Jelena Kostanić |
| Main Name: | WTA Auckland Open |
The 2005 ASB Classic was a women's tennis tournament played on outdoor hard courts at the ASB Tennis Centre in Auckland, New Zealand that was part of Tier IV of the 2005 WTA Tour. It was the 20th edition of the tournament and took place from 3 January until 8 January 2005. Unseeded Katarina Srebotnik won the singles title and earned $22,000 first-prize money.[1]
Katarina Srebotnik defeated Shinobu Asagoe, 5–7, 7–5, 6–4
Shinobu Asagoe / Katarina Srebotnik defeated 
Leanne Baker / 
Francesca Lubiani, 6–3, 6–3| Event | W | F | SF | QF | Round of 16 | Round of 32 | width=85 | Q3 | width=85 | Q2 | width=85 | Q1 |
| Singles | $22,000 | $12,000 | $6,300 | $3,400 | $1,825 | $1,000 | $550 | $300 | $175 | |||
| Doubles * | $6,500 | $3,475 | $1,850 | $1,000 | $550 |
| Event | W | F | SF | QF | Round of 16 | Round of 32 |
| Singles | 95 | 67 | 43 | 24 | 12 | 1 |
|---|---|---|---|---|---|---|
| Doubles | 1 |