The 2008 La Serena Open was a men's tennis tournament played on outdoor clay courts. It was the 3rd and final edition of the event, and part of the 2008 ATP Challenger Series of the 2008 ATP Tour. It took place at the tennis courts at the La Serena Golf resort in La Serena, Chile, from 14 through 20 January 2008.
The highlight of the tournament was the presence of Argentinian Mariano Puerta, former French Open runner-up in 2005, who returned to tennis in June 2007 after a 2-year ban due to doping. A temporary court with a capacity of 1,500 was specially built for the tournament.[1]
| Event | W | F | SF | QF | Round of 16 | Round of 32 | width=85 | Q | width=85 | Q3 | width=85 | Q2 | width=85 | Q1 |
| Singles | 55 | 38 | 24 | 13 | 5 | 0 | colspan="4" | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubles | 0 | |||||||||||||
| Event | W | F | SF | QF | Round of 16 | Round of 32 | width=85 | Q3 | width=85 | Q2 | width=85 | Q1 |
| Singles | $7,200 | $4,240 | $2,510 | $1,460 | $860 | $520 | colspan="3" | |||||
| Doubles * | $3,100 | $1,800 | $1,080 | $640 | $360 | |||||||
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Ecuador | Nicolás Lapentti | 110 | 1 | |
 Spain | Rubén Ramírez Hidalgo | 134 | 2 | |
 Argentina | Juan Pablo Guzmán | 151 | 3 | |
| Argentina | Brian Dabul | 156 | 4 | |
| Argentina | Eduardo Schwank | 171 | 5 | |
 Brazil | Thomaz Bellucci | 183 | 6 | |
| Adrián García | 187 | 7 | ||
| Spain | Daniel Muñoz de la Nava | 198 | 8 |
The following players received wildcards into the singles main draw:[2]
The following players received entry from the qualifying draw:
The following player received entry as lucky loser:
Alejandro KonBefore the tournament
Edgardo Massa → replaced by Kon| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Argentina | Juan Pablo Guzmán | Spain | Rubén Ramírez Hidalgo | 160 | 1 | |
| Argentina | Brian Dabul | Argentina | Horacio Zeballos | 175 | 2 | |
| Ecuador | Nicolás Lapentti | Argentina | Eduardo Schwank | 471 | 3 | |
| Spain | Daniel Muñoz de la Nava | Spain | Gabriel Trujillo Soler | 472 | 4 |
The following pairs received wildcards into the doubles main draw:
Pablo FigueroaThe following pair received entry as alternates:
Before the tournament
Franco Ferreiro / 
Manuel Jorquera → replaced by Marrai/TrusendiSee main article: article and 2008 La Serena Open – Singles.
Rubén Ramírez Hidalgo defeated David Marrero, 6–3, 6–1[3]It was the 5th Challenger title for Ramírez Hidalgo in his singles career.
See main article: article and 2008 La Serena Open – Doubles.
Nicolás Lapentti / Eduardo Schwank defeated Sebastián Decoud / Cristian Villagrán, 6–4, 6–0