The 2008 Cachantún Cup was a women's tennis tournament played on outdoor clay courts. It was the first and only edition of the Cachantún Cup, and was part of the Tier III Series of the 2008 WTA Tour. It took place in Viña del Mar, Chile, on 11–17 February 2008. Flavia Pennetta won the singles title.
See main article: 2008 Cachantún Cup – Singles. Flavia Pennetta defeated Klára Zakopalová, 6–4, 5–4 retired
See main article: 2008 Cachantún Cup – Doubles. Līga Dekmeijere / Alicja Rosolska defeated Mariya Koryttseva / Julia Schruff, 7–5, 6–3