"María la del Barrio" is a song by Mexican singer Thalía, from her fourth studio album En éxtasis (1995). It was released as the third single from the album and also as the theme song of the Mexican telenovela of the same name. The song was written by Viviana Pimstein and Paco Navarrete. "Maria la del Barrio" followed the "Thalía mania" success around the world and was a number one single in more than 20 countries. The song is considered one of her signature songs and was a smash hit.

Ariadna Thalía Sodi Miranda, known mononymously as Thalía, is a Mexican singer, songwriter and actress. Referred to as the "Queen of Latin Pop", she is considered one of the most successful and influential Mexican artists. Having sold around 25 million records worldwide, she is one of the best-selling Latin music artists of all time. Aside from her native Spanish, Thalía has also sung in English, French, Portuguese and Tagalog.