Conchalí is a commune of Chile located in Santiago Province, Santiago Metropolitan Region. It is a northwestern suburb of Santiago.

According to the 2002 census of the National Statistics Institute, Conchalí spans an area of 70.7 km² (27 sq mi) and has 133,256 inhabitants (64,973 men and 68,283 women), making the commune an entirely urban area. The population fell by 12.9% (19663 persons) between the 1992 and 2002 censuses. Its 2006 population was projected at 120,151 persons.^{[dead link]}

As a commune, Conchalí is a third-level administrative division of Chile administered by a municipal council, headed by an alcalde who is directly elected every four years. The 2008-2012 alcalde is Rubén Malvoa Hernández (RN).

Within the electoral divisions of Chile, Conchalí is represented in the Chamber of Deputies by Karla Rubilar (RN) and María Antonieta Saa (PPD) as part of the 17th electoral district, (together with Renca and Huechuraba). The commune is represented in the Senate by Guido Girardi Lavín (PPD) and Jovino Novoa Vásquez (UDI) as part of the 7th senatorial constituency (Santiago-West).