| Date: | 23–29 November |
| Edition: | 34th (1st as WTA 125k event) |
| Category: | WTA 125K series |
| Surface: | Hard |
| Prize Money: | $115,000 |
| Location: | Carlsbad, California, United States |
| Venue: | Park Hyatt Resort Aviara |
| Champs: |  Yanina Wickmayer |
| Champd: |  Gabriela Cé / Verónica Cepede Royg |
| After Year: | 2021 |
| After Name: | San Diego Open |
| Before Name: | Southern California Open |
| Before Year: | 2013 |
| Main Name: | Southern California Open |
The 2015 Carlsbad Classic was a professional women's tennis tournament played on outdoor hard courts. It was the first edition of the tournament as part of the 2015 WTA 125K series. It took place in Carlsbad, California, United States, on 23–29 November 2015. First-seeded Yanina Wickmayer won the singles title.
See main article: 2015 Carlsbad Classic – Singles.
Yanina Wickmayer defeated 
Nicole Gibbs, 6–3, 7–6(7–4)See main article: 2015 Carlsbad Classic – Doubles.
Gabriela Cé / Verónica Cepede Royg defeated 
Oksana Kalashnikova / Tatjana Maria, 1–6, 6–4, [10–8]| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Belgium | Yanina Wickmayer | 49 | 1 | |
| Tatjana Maria | 69 | 2 | ||
 Serbia | Bojana Jovanovski | 78 | 3 | |
 United Kingdom | Naomi Broady | 120 | 4 | |
| Nicole Gibbs | 121 | 5 | ||
 Israel | Julia Glushko | 127 | 6 | |
| Sachia Vickery | 130 | 7 | ||
 Sweden | Rebecca Peterson | 133 | 8 |
The following players received wildcards into the singles main draw:
Brett Berger Nicole Mossmer Zoë Gwen Scandalis Alexandra Stevenson Yanina WickmayerThe following players received entry from the qualifying draw:
| Country | Player | Country | Player | Rank | Seed | |
|---|---|---|---|---|---|---|
| Georgia | Oksana Kalashnikova | Tatjana Maria | 157 | 1 | ||
 Canada | Gabriela Dabrowski | Canada | Sharon Fichman | 180 | 2 | |
| Brazil | Paula Cristina Gonçalves | Sanaz Marand | 217 | 3 | ||
| Israel | Julia Glushko | Sweden | Rebecca Peterson | 260 | 4 |
The following pair received a wildcard into the doubles main draw: