The 2012 Tampere Open was a professional tennis tournament played on hard courts. It was the 31st edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Tampere, Finland between 23 and 29 July 2012.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| João Sousa | 143 | 1 | ||
| Gastão Elias | 159 | 2 | ||
 France | Éric Prodon | 161 | 3 | |
| France | Jonathan Dasnières de Veigy | 165 | 4 | |
 Austria | Michael Linzer | 238 | 5 | |
| Michael Lammer | 240 | 6 | ||
 Finland | Harri Heliövaara | 247 | 7 | |
| Boy Westerhof | 263 | 8 |
The following players received wildcards into the singles main draw:
Micke Kontinen Henrik Sillanpää Max WennakoskiThe following players received entry from the qualifying draw:
Alexandre Folie
Petru-Alexandru Luncanu Yannik Reuter
Patrik RosenholmSee main article: 2012 Tampere Open – Singles.
Éric Prodon, 7–6(7–5), 6–4See main article: 2012 Tampere Open – Doubles.
Michael Linzer / Gerald Melzer def. Niels Desein / 
André Ghem, 6–1, 7–6(7–3)