| Date: | July 9 – July 15 |
| Edition: | 5th |
| Category: | ITF Women's Circuit |
| Surface: | Clay – outdoors |
| Location: | Waterloo, Ontario, Canada |
| Venue: | Waterloo Tennis Club |
| Champs: |  Sharon Fichman |
| Champd: | Sharon Fichman / Marie-Ève Pelletier |
| Before Name: | WOW Tennis Challenger |
| Main Name: | Waterloo Challenger |
The 2012 Cooper Challenger was a professional tennis tournament played on outdoor clay courts. It was the 5th edition of the tournament and part of the 2012 ITF Women's Circuit, offering a total of $50,000 in prize money. It took place in Waterloo, Ontario, Canada between July 9 and July 15, 2012.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Canada | Sharon Fichman | 197 | 1 | |
 Israel | Julia Glushko | 226 | 2 | |
 Japan | Misa Eguchi | 254 | 3 | |
| Canada | Marie-Ève Pelletier | 255 | 4 | |
| Japan | Rika Fujiwara | 271 | 5 | |
 Venezuela, Bolivarian Republic of | Gabriela Paz | 317 | 6 | |
 Austria | Nicole Rottmann | 326 | 7 | |
| Austria | Tina Schiechtl | 327 | 8 |
The following players received wildcards into the singles main draw:
Élisabeth Abanda Marianne Jodoin Sonja Molnar Stephanie WetmoreThe following players received entry from the qualifying draw:
Veronica Corning
Sherazad Benamar Sandra Dynka Erin ClarkSee main article: 2012 Cooper Challenger – Singles.
Sharon Fichman def. Julia Glushko, 6–3, 6–2See main article: 2012 Cooper Challenger – Doubles.
Sharon Fichman / Marie-Ève Pelletier def. Shuko Aoyama / Gabriela Dabrowski, 6–2, 7–5