¿Dónde está Elisa? (lit: Where is Elisa?) is a Chilean thriller television soap opera, that first appeared on television on April 21 of 2009 in TVN. It is written by Pablo Illanes, with scripts from Pablo Illanes, Nona Fernández, Hugo Morales and Josefina Fernández and is directed by María Eugenia Rencoret.

The soap opera is noted for its several remakes or adaptations. Nearly a year after the show aired, three international remakes were produced, with the most popular one – made by American Spanish-language television channel Telemundo – bearing the same title as the original. The other two adaptations made in 2010, Turkish network aTV's Kızım Nerede? and Indonesian entertainment company MD Entertainment's Di Mana Melani, also saw success. Other subsequent remakes of ¿Dónde está Elisa? include Nasaan Ka, Elisa? (2011; by Filipino television company ABS-CBN), Family Secret (2014; by South Korean television network tvN), and Laut Aao Trisha (2014–15; by Indian pay television channel Life OK).

The story involves the events of the disappearance of Elisa (Montserrat Prats), one of the daughters of the couple formed by Raimundo Domínguez (Francisco Melo) and Francisca Correa (Sigrid Alegría), who after 17 years of marriage become so desperate that their own marriage is in danger.

Inspiration of the story comes from the real life drama involving vanished British native Madeleine McCann in Portugal. However, unlike the McCann story, the soap opera features a teenager who disappears and not a small child. The disappearance in a local club makes the story very similar to that of Jorge Matute Johns, a Chilean youngster who disappeared and was never seen again after leaving a party at a local disco. The list of suspects is long and includes family members, fellow students, and friends of the teenager who frequented the same places that she did prior to her disappearance.

Production of the opera began on August 14, 2008.

The first infomercial or preview of the production was shown on Friday, March 13, 2009.