The 2012 TEAN International was a professional tennis tournament played on clay courts. It was the 17th edition of the tournament which was part of the 2012 ATP Challenger Tour and the 12th edition of the tournament for the 2012 ITF Women's Circuit. It took place in Alphen aan den Rijn, Netherlands between 3 and 9 September 2011.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Igor Sijsling | 78 | 1 | ||
 Spain | Daniel Gimeno Traver | 96 | 2 | |
 Belgium | Ruben Bemelmans | 121 | 3 | |
| João Sousa | 122 | 4 | ||
| Spain | Iñigo Cervantes Huegun | 146 | 5 | |
 France | Jonathan Dasnières de Veigy | 153 | 6 | |
 Czech Republic | Jan Mertl | 186 | 7 | |
| Thiemo de Bakker | 187 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Philip Davydenko
James McGee
Gerald Melzer| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Belarus | Anastasiya Yakimova | 147 | 1 | |
 Romania | Mihaela Buzărnescu | 165 | 2 | |
 Canada | Sharon Fichman | 213 | 3 | |
 Brazil | Teliana Pereira | 214 | 4 | |
| Kathrin Wörle | 217 | 5 | ||
 Peru | Bianca Botto | 218 | 6 | |
| France | Iryna Brémond | 220 | 7 | |
 United Kingdom | Naomi Broady | 224 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Eva Fernández-Brugués
Andrea Gámiz
Sofia Kvatsabaia
Katarzyna Piter Arina Rodionova Janina ToljanSee main article: 2012 TEAN International – Men's singles.
See main article: 2012 TEAN International – Women's singles.
Sandra Záhlavová def. Lesley Kerkhove, 7–5, 7–6(7–5)See main article: 2012 TEAN International – Men's doubles.
Rameez Junaid / Simon Stadler def. Simon Greul / Bastian Knittel, 4–6, 6–1, [10–5]See main article: 2012 TEAN International – Women's doubles.
Diana Buzean / Daniëlle Harmsen def. 
Corinna Dentoni / Justine Ozga, 6–2, 6–0