| Date: | 11–17 January 2015 |
| Edition: | 123rd |
| Category: | ATP World Tour 250 series / WTA Premier |
| Draw: | 32S / 16D |
| Prize Money: | $494,310 (men) $731,000 (women) |
| Surface: | Hard |
| Location: | Sydney, Australia |
| Venue: | NSW Tennis Centre |
| Champms: |  Viktor Troicki |
| Champws: |  Petra Kvitová |
| Champmd: |  Rohan Bopanna /  Daniel Nestor |
| Champwd: |  Bethanie Mattek-Sands / Sania Mirza |
| Main Name: | Sydney International |
The 2015 Apia International Sydney was a joint 2015 ATP World Tour and 2015 WTA Tour tennis tournament, played on outdoor hard courts in Sydney, New South Wales. It was the 123rd edition of the tournament and took place at the NSW Tennis Centre in Sydney, Australia. It was held from 11 January through 17 January 2015 as part of the Australian Open Series in preparation for the first Grand Slam of the year.
| 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 | 0 | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Men's doubles | 0 | |||||||||||||
| Women's singles | 470 | 305 | 185 | 100 | 55 | 1 | 25 | 18 | 13 | 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 | $80,000 | $42,100 | $22,800 | $12,990 | $7,655 | $4,535 | $730 | $350 | ||||
| Men's doubles* | $24,280 | $12,760 | $6,920 | $3,960 | $2,320 | |||||||
| Women's singles | $124,000 | $66,000 | $35,455 | $19,050 | $10,220 | $5,580 | $2,920 | $1,555 | $860 | |||
| Women's doubles* | $39,000 | $20,650 | $11,360 | $5,875 | $3,140 |
| width=70 | Country | width=175 | Player | Rank1 | Seed |
|---|---|---|---|---|---|
 Italy | Fabio Fognini | 19 | 1 | ||
 Belgium | David Goffin | 22 | 2 | ||
| Philipp Kohlschreiber | 24 | 3 | |||
 France | Julien Benneteau | 25 | 4 | ||
 Argentina | Leonardo Mayer | 28 | 5 | ||
| Pablo Cuevas | 29 | 6 | |||
| France | Jérémy Chardy | 31 | 7 | ||
 Slovakia | Martin Kližan | 34 | 8 |
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:
Marcel Granollers (knee injury) → replaced by Simone Bolelli| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| France | Julien Benneteau | France | Édouard Roger-Vasselin | 12 | 1 | |
| Jean-Julien Rojer |  Romania | Horia Tecău | 32 | 2 | ||
| India | Rohan Bopanna | Canada | Daniel Nestor | 34 | 3 | |
 Pakistan | Aisam-ul-Haq Qureshi | Serbia | Nenad Zimonjić | 37 | 4 |
The following pairs received wildcards into the doubles main draw:
| width=70 | Country | width=175 | Player | Rank1 | Seed |
|---|---|---|---|---|---|
| Romania | |||||
| Czech Republic | Petra Kvitová | 4 | 2 | ||
 Poland | Agnieszka Radwańska | 6 | 3 | ||
| Caroline Wozniacki | 8 | 4 | |||
| Angelique Kerber | 9 | 5 | |||
 Russian Federation | Ekaterina Makarova | 10 | 6 | ||
| Slovakia | Dominika Cibulková | 11 | 7 | ||
| Italy | Flavia Pennetta | 12 | 8 |
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:
Simona Halep (gastrointestinal illness) → replaced by Nicole Gibbs Madison Keys| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Martina Hingis | Italy | Flavia Pennetta | 23 | 1 | ||
| Raquel Kops-Jones | Abigail Spears | 24 | 2 | |||
| Spain | Spain | |||||
| Chan Hao-ching | Czech Republic | Květa Peschke | 37 | 4 |
The following pairs received wildcards into the doubles main draw:
Lucie Šafářová Dominika Cibulková / 
Jarmila Gajdošová Arina Rodionova / 
Olga SavchukSee main article: 2015 Apia International Sydney – Men's singles.
Viktor Troicki defeated 
Mikhail Kukushkin, 6–2, 6–3[1]See main article: 2015 Apia International Sydney – Women's singles.
Petra Kvitová defeated Karolína Plíšková, 7–6(7–5), 7–6(8–6)See main article: 2015 Apia International Sydney – Men's doubles.
Rohan Bopanna / Daniel Nestor defeated Jean-Julien Rojer / Horia Tecău, 6–4, 7–6(7–5)[2]See main article: 2015 Apia International Sydney – Women's doubles.
Bethanie Mattek-Sands / Sania Mirza defeated Raquel Kops-Jones / Abigail Spears, 6–3, 6–3[3]