The 2011 TEAN International was a professional tennis tournament played on hard courts. It was the 16th edition of the tournament which was part of the 2011 ATP Challenger Tour and the 11th edition of the tournament for the 2011 ITF Women's Circuit. It took place in Alphen aan den Rijn, Netherlands between 5 and 11 September 2011.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 France | Éric Prodon | 88 | 1 | |
| Thomas Schoorel | 117 | 2 | ||
 Slovenia | Grega Žemlja | 122 | 3 | |
| Simon Greul | 147 | 4 | ||
| France | Augustin Gensse | 155 | 5 | |
| Thiemo de Bakker | 159 | 6 | ||
| Jesse Huta Galung | 160 | 7 | ||
| France | David Guez | 165 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Alexandre Folie
James McGee
Roman Vögeli| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Sarah Gronert | 197 | 1 | ||
| France | Alizé Lim | 220 | 2 | |
| Bibiane Schoofs | 226 | 3 | ||
 Brazil | Ana Clara Duarte | 235 | 4 | |
| France | Séverine Beltrame | 238 | 5 | |
 Liechtenstein | Stephanie Vogt | 245 | 6 | |
| France | Nathalie Piquion | 251 | 7 | |
| Brazil | Vivian Segnini | 292 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Albina Khabibulina
Ksenia Kirillova
Ilona Kremen Zuzana ZálabskáThe following players received entry by a lucky loser spot:
See main article: 2011 TEAN International – Men's singles. Igor Sijsling def. Jan-Lennard Struff, 7–6(7–2), 6–3
See main article: 2011 TEAN International – Women's singles. Stephanie Vogt def. 
Katarzyna Piter, 6 - 2, 6 - 4
See main article: 2011 TEAN International – Men's doubles. Thiemo de Bakker / Antal van der Duim def. Matwé Middelkoop / Igor Sijsling, 6–4, 6–7(4–7), [10–6]
See main article: 2011 TEAN International – Women's doubles. 
Diana Enache / Daniëlle Harmsen def. Katarzyna Piter / Barbara Sobaszkiewicz, 6–2, 6–7(4–7), [11–9]