"Día de Suerte" 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 2011 as the main theme for the Mexican telenovela Una Familia con Suerte. The song was included in the setlist of Guzmán's live album 20 Años de Éxitos En Vivo con Moderatto (2011) and was performed by the singer and Moderatto. The studio version is featured on the album as a bonus track.

Gabriela Alejandra Guzmán Pinal is a Mexican musician, singer, composer, and actress. With more than 30 million records sold throughout her career, winner of a Latin Grammy Award, and nicknamed "La Reina de Corazones" and "La Reina del Rock", she is one of the most successful Mexican female singers. She is also daughter of actress Silvia Pinal and singer Enrique Guzmán.