"Día de Suerte" ("Lucky Day") is a song by Mexican recording artist Alejandra Guzmán.

Written by Guzmán and José Luis Ortega and produced by Armando Avila, the track was released on 2 February 2010 as the main theme for the Mexican telenovela Una Familia con Suerte.

The song is featured as the main theme for the Mexican telenovela Una Familia con Suerte, produced by Juan Osorio and starring Arath de la Torre, Mayrín Villanueva and Luz Elena González.

"[2] Guzmán found inspiration for the song in the middle of one night and immediately called Juan Osorio with the news.

[9][10] For the week of September 24, 2011, Guzmán had two top-ten singles in the Latin Pop Songs chart simultaneously, at number nine "Tan Sólo Tú" (a featured performance with Franco De Vita) and "Día de Suerte" climbing to number two.