The 2010 Open Tarragona Costa Daurada was a professional tennis tournament played on clay courts. It was the fifth edition of the tournament which was part of the 2010 ATP Challenger Tour. It took place in Tarragona, Catalonia, Spain between 4 and 11 October 2010.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Spain | Marcel Granollers | 76 | 1 | |
| Spain | Pablo Andújar | 77 | 2 | |
| Spain | Pere Riba | 79 | 3 | |
| Frederico Gil | 84 | 4 | ||
 Czech Republic | Jan Hájek | 93 | 5 | |
| Spain | Albert Ramos-Viñolas | 120 | 6 | |
| Spain | Daniel Muñoz de la Nava | 133 | 7 | |
 France | Benoît Paire | 145 | 8 |
The following players received wildcards into the singles main draw:
Marcel Granollers Sergio Gutiérrez-FerrolThe following players received entry from the qualifying draw:
Gerard Granollers-Pujol Axel Michon Marcelo Palacios José Checa-Calvo (Lucky loser replacing Óscar Hernández) Jordi Samper-Montaña (Lucky loser replacing Lamine Ouahab)See main article: 2010 Open Tarragona Costa Daurada – Singles. Marcel Granollers def. Jaroslav Pospíšil, 1–6, 7–5, 6–0
See main article: 2010 Open Tarragona Costa Daurada – Doubles. Guillermo Olaso / Pere Riba def. Pablo Andújar / Gerard Granollers-Pujol, 7–6(1), 4–6, [10–5]