The 2018 Auckland Open (sponsored by ASB Bank) was a joint 2018 ATP World Tour and 2018 WTA Tour tennis tournament, played on outdoor hard courts.

It was the 33rd edition of the women's event, and the 42nd edition of the men's event.

It took place at the ASB Tennis Centre in Auckland, New Zealand, from 1 to 7 January 2018 for the women, and from 8 to 13 January 2018 for the men.

1 Qualifiers' prize money is also the Round of 32 prize money * per team The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: The following players received entry as lucky losers: The following pairs received wildcards into the doubles main draw: The following pair received entry as alternates: The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: The following pairs received wildcards into the doubles main draw: