L'Alfàs del Pi (Valencian pronunciation: [laɫˈfaz ðeɫ ˈpi], Spanish: Alfaz del Pi) is a Valencian town and municipality located in the comarca of Marina Baixa, in the province of Alicante, Spain, lying at the foot of Serra Gelada.

L'Alfàs del Pi has an area of 19.3 km² and, according to the 2013 census, a total population of 21,969 inhabitants. The town has the second largest concentration of Norwegian residents abroad, along with sizable Dutch and English communities. The economy of L'Alfàs del Pi is mainly based on tourism. The most important monument in the city is the Catholic church of Crist del Bon Encert, built in 1784. The town's symbol is a pine tree, which can be found in the church square. It is home to a nationally renowned film festival which runs each year.

L'Alfàs del Pi has created a planned sea-side community - Platja de l'Albir - situated between Benidorm to the south and Altea to the north in fields earlier dominated by citrus and almond groves. Since 1995, Albir has grown into a village of about 5,000 inhabitants; the majority of which are originally from Northern Europe.