| Date: | 6–12 January 2020 (women) 13–18 January 2020 (men) |
| Category: | WTA International ATP 250 |
| Edition: | 35th (women) 44th (men) |
| Draw: | 32S / 16D (women) 28S / 16D (men) |
| Surface: | Hard |
| Prize Money: | $275,000 (women) $610,010 (men) |
| Location: | Auckland, New Zealand |
| Venue: | ASB Tennis Centre |
| Main Name: | WTA Auckland OpenAuckland Open |
| Champms: |  Ugo Humbert |
| Champws: |  Serena Williams |
| Champmd: |  Ben McLachlan /  Luke Bambridge |
| Champwd: | Asia Muhammad / Taylor Townsend |
| After Year: | 2023 |
The 2020 Auckland Open (sponsored by ASB Bank) was a joint ATP and WTA tennis tournament, played on outdoor hard courts. It was the 35th edition of the women's event,[1] and the 44th edition of the men's event.[2] It took place at the ASB Tennis Centre in Auckland, New Zealand, from 6 to 12 January 2020 for the women, and from 13 to 18 January 2020 for the men.
| Event | W | F | SF | QF | Round of 16 | Round of 32 | width=85 | Q | width=85 | Q3 | width=85 | Q2 | width=85 | Q1 |
| Men's singles | 250 | 150 | 90 | 45 | 20 | 0 | 12 | 6 | 0 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Men's doubles | 0 | |||||||||||||
| Women's singles | 280 | 180 | 110 | 60 | 30 | 1 | 18 | 14 | 10 | 1 | ||||
| Women's doubles | 1 |
| Event | W | F | SF | QF | Round of 16 | Round of 321 | width=85 | Q3 | width=85 | Q2 | width=85 | Q1 |
| Men's singles | $91,625 | $50,710 | $28,540 | $16,250 | $9,320 | $5,450 | $2,665 | $1,385 | ||||
| Men's doubles * | $30,900 | $15,840 | $8,580 | $4,910 | $2,880 | |||||||
| Women's singles | $43,000 | $21,410 | $11,400 | $6,100 | $3,570 | $2,300 | $1,080 | $940 | $800 | |||
| Women's doubles * | $13,580 | $7,200 | $4,000 | $2,300 | $1,520 |
| width=70 | Country | width=175 | Player | Rank1 | Seed |
|---|---|---|---|---|---|
 Italy | Fabio Fognini | 12 | 1 | ||
 Canada | Denis Shapovalov | 14 | 2 | ||
 Russian Federation | Karen Khachanov | 17 | 3 | ||
| John Isner | 19 | 4 | |||
| France | Benoît Paire | 24 | 5 | ||
 Poland | Hubert Hurkacz | 37 | 6 | ||
| France | Adrian Mannarino | 43 | 7 | ||
 Moldova, Republic of |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Radu Albot → replaced by 
Leonardo Mayer Daniil Medvedev → replaced by Tennys Sandgren| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
 Australia | John Peers |  New Zealand | Michael Venus | 35 | 1 | |
| Mate Pavić |  Brazil | Bruno Soares | 38 | 2 | ||
 India | Rohan Bopanna |  Finland | Henri Kontinen | 58 | 3 | |
| Austin Krajicek | Franko Ĺ kugor | 76 | 4 |
The following pairs received wildcards into the doubles main draw:
| width=70 | Country | width=175 | Player | Rank1 | Seed |
|---|---|---|---|---|---|
| Serena Williams | 10 | 1 | |||
| Petra Martić | 15 | 2 | |||
| Amanda Anisimova | 24 | 3 | |||
| Julia Görges | 28 | 4 | |||
| Caroline Wozniacki | 38 | 5 | |||
 Sweden | Rebecca Peterson | 44 | 6 | ||
| France | Caroline Garcia | 46 | 8 | ||
 Belgium |
The following players received wildcards into the singles main draw:
The following player received entry using a protected ranking into the singles main draw:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
Bianca Andreescu[7] → replaced by Christina McHale Svetlana Kuznetsova → replaced by Usue Maitane Arconada Ysaline Bonaventure Jessica Pegula[8] Alison Van Uytvanck → replaced by Caty McNally Alizé Cornet (right adductor strain)| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Caroline Dolehide | Sweden | Johanna Larsson | 95 | 1 | ||
 Spain | Lara Arruabarrena |  Czech Republic | Renata Voráčová | 105 | 2 | |
| Desirae Krawczyk | Laura Siegemund | 121 | 3 | |||
| Kaitlyn Christian | Alexa Guarachi | 126 | 4 |
The following pairs received wildcards into the doubles main draw:
See main article: 2020 ASB Classic – Men's singles.
Ugo Humbert defeated Benoît Paire, 7–6(7–2), 3–6, 7–6(7–5)See main article: 2020 ASB Classic – Women's singles.
Serena Williams defeated Jessica Pegula, 6–3, 6–4See main article: 2020 ASB Classic – Men's doubles.
Luke Bambridge / Ben McLachlan defeated Marcus Daniell / 
Philipp Oswald, 7–6(7–2), 6–3See main article: 2020 ASB Classic – Women's doubles.
Asia Muhammad / Taylor Townsend defeated Serena Williams / Caroline Wozniacki, 6–4, 6–4