"O Tú o Ninguna" (English: "Or You or Nobody")[1] is a song written by Juan Carlos Calderón and produced and performed by Mexican singer Luis Miguel.

The track topped the US Billboard Hot Latin Songs chart; and reached the top-five in Guatemala, Nicaragua and Panama.

In addition to Miguel co-writing several of the record's tracks, he was assisted by other composers including Armando Manzanero, Juan Carlos Calderón, and Arturo Perez.

[13][14] Fred Shuster of the Los Angeles Daily News called "O Tú o Ninguna" a "radio staple".

[9] The Orange County Register editor Daniel Chang regarded the song as a "tender bolero that defines Miguel's signature style of heart-melting charm and warmth.

[11] At the inaugural Latin Grammy Awards ceremony in 2000, "O Tú o Ninguna" received a nomination for Song of the Year,[15] but lost to "Dímelo" by Marc Anthony.

[17] In the United States, "O Tú o Ninguna" debuted at number 13 on the Billboard Hot Latin Songs chart on the week of 9 October 1999.