I never play 9-hole golf courses, so do not review them for this Web site. The site only covers full 18-hole golf courses. Below is a simple list of 9-hole golf courses on the Costa del Sol that I am aware of.
Casares Costa Golf: Located just West of Estepona on road to Casares. Par 34. Web: casarescostagolf.com
La Resina: Located just East of Estepona. Par 29. Web: laresina.net
La Dama de Noche: Located near Aloha in Nueva Andalucía. This course closed in 2014.
El Soto: Located above Santa Maria in Elviria on road to La Mairena. Par 27. Web and other contact details are unreliable. May be on Facebook.
La Noria: Located just north of the A7 road near La Cala de Mijas. Par 33. Web: lanoriagolf.net
Cerrado del Aguila: Located just West of Fuengirola. Par 35. Web: cerradodelaguila.com