"Por Debajo de la Mesa" ("Underneath the Table") is a song written by Armando Manzanero and performed by Mexican recording artist Luis Miguel. Arranged by Bebu Silvetti, it was one of the two original compositions written for Miguel's fifteenth studio album Romances. It was released as the lead single from the album on July 15, 1997 and it became his thirteenth number-one single on the Billboard Hot Latin Songs chart in the United States. The music video features Miguel performing at a fine-dining restaurant in New York City.
The track received a negative reaction from Achy Obejas of the Chicago Tribune who called it "lame". It was nominated Pop Song of the Year at the 10th Annual Lo Nuestro Awards and Manzanero was awarded a Broadcast Music, Inc. (BMI) Latin Award for writing the song. Manzanero performed the record as a duet with several artists such as Tania Libertad and Susana Zabaleta.