The 2012 Monterrey Open was a women's tennis tournament played on outdoor hard courts. It was the fourth edition of the Monterrey Open and was an International tournament on the 2012 WTA Tour. It took place at the Sierra Madre Tennis Club in Monterrey, Mexico, from 20 February through 26 February 2012. Unseeded Tímea Babos won the singles title.[1]
See main article: 2012 Monterrey Open – Singles. 
Tímea Babos defeated 
Alexandra Cadanțu, 6–4, 6–4
See main article: 2012 Monterrey Open – Doubles. 
Sara Errani / Roberta Vinci defeated 
Kimiko Date-Krumm / 
Zhang Shuai, 6–2, 7–6(8–6)
| Country | Player | Rank* | Seed | |
|---|---|---|---|---|
| Italy | Roberta Vinci | 24 | 1 | |
| Italy | Sara Errani | 35 | 2 | |
| Romania | Sorana Cîrstea | 49 | 3 | |
| Romania | Alexandra Dulgheru | 53 | 4 | |
 Argentina | Gisela Dulko | 68 | 5 | |
| Hungary | Gréta Arn | 70 | 6 | |
 France | Mathilde Johansson | 71 | 7 | |
 Spain | Lourdes Domínguez Lino | 72 | 8 |
The following players received wildcards into the main draw:
The following players received entry via qualifying:
Serena Williams (left ankle injury)[2] [3]| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Italy | Sara Errani | Italy | Roberta Vinci | 31 | 1 | |
| Kimiko Date-Krumm | Zhang Shuai | 116 | 2 | |||
 Russian Federation | Nina Bratchikova | Darija Jurak | 149 | 3 | ||
 Czech Republic | Eva Birnerová | Alexandra Panova | 159 | 4 |
The following pairs received wildcards into the doubles main draw:
