The 2012 Reinert Open was a professional tennis tournament played on outdoor clay courts. It was the 5th edition of the tournament and was part of the 2012 ITF Women's Circuit. It took place in Versmold, Germany between 2 and 8 July 2012.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Austria | Yvonne Meusburger | 126 | 1 | |
| Dinah Pfizenmaier | 140 | 2 | ||
| Bibiane Schoofs | 146 | 3 | ||
| Elitsa Kostova | 156 | 4 | ||
 France | Kristina Mladenovic | 157 | 5 | |
 Poland | Sandra Zaniewska | 160 | 6 | |
| Sarah Gronert | 165 | 7 | ||
| Poland | Marta Domachowska | 166 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following players received entry from a Lucky loser spot:
See main article: 2012 Reinert Open – Singles.
See main article: 2012 Reinert Open – Doubles.
Mailen Auroux / María Irigoyen def. 
Elena Bogdan / 
Réka-Luca Jani, 6–1, 6–4
