List of number-one Billboard Hot Latin Tracks of 2003
This is a list containing the Billboard Hot Latin Tracks number-ones of 2003.
| Issue date | Song | Artist | Ref. |
| January 4 | "El Problema" | Ricardo Arjona | |
| January 11 | "El Problema" | Ricardo Arjona | |
| January 18 | "El Problema" | Ricardo Arjona | |
| January 25 | "El Problema" | Ricardo Arjona | |
| February 1 | "Así Es La Vida" | Olga Tañón | |
| February 8 | "Así Es La Vida" | Olga Tañón | |
| February 15 | "Sedúceme" | India | |
| February 22 | "Quizás" | Enrique Iglesias | |
| March 1 | "Que Me Quedes Tú" | Shakira | |
| March 8 | "Sedúceme" | India | |
| March 15 | "Sedúceme" | India | |
| March 22 | "Una Vez Más" | Conjunto Primavera | |
| March 29 | "Una Vez Más" | Conjunto Primavera | |
| April 5 | "Una Vez Más" | Conjunto Primavera | |
| April 12 | "Tal Vez" | Ricky Martin | |
| April 19 | "Tal Vez" | Ricky Martin | |
| April 26 | "Tal Vez" | Ricky Martin | |
| May 3 | "Tal Vez" | Ricky Martin | |
| May 10 | "Tal Vez" | Ricky Martin | |
| May 17 | "Tal Vez" | Ricky Martin | |
| May 24 | "Tal Vez" | Ricky Martin | |
| May 31 | "Para Qué La Vida" | Enrique Iglesias | |
| June 7 | "Tal Vez" | Ricky Martin | |
| June 14 | "Tal Vez" | Ricky Martin | |
| June 21 | "Tal Vez" | Ricky Martin | |
| June 28 | "Tal Vez" | Ricky Martin | |
| July 5 | "Mariposa Traicionera" | Maná | |
| July 12 | "Tu Amor o Tu Desprecio" | Marco Antonio Solís | |
| July 19 | "Fotografía" | Juanes featuring Nelly Furtado | |
| July 26 | "Fotografía" | Juanes featuring Nelly Furtado | |
| August 2 | "Casi" | Soraya | |
| August 9 | "Jaleo" | Ricky Martin | |
| August 16 | "Fotografía" | Juanes featuring Nelly Furtado | |
| August 23 | "Fotografía" | Juanes featuring Nelly Furtado | |
| August 30 | "Fotografía" | Juanes featuring Nelly Furtado | |
| September 6 | "Un Siglo Sin Ti" | Chayanne | |
| September 13 | "Antes" | Obie Bermúdez | |
| September 20 | "Antes" | Obie Bermúdez | |
| September 27 | "Antes" | Obie Bermúdez | |
| October 4 | "Hoy" | Gloria Estefan | |
| October 11 | "Hoy" | Gloria Estefan | |
| October 11 | "Hoy" | Gloria Estefan | |
| October 18 | "Antes" | Obie Bermudez | |
| October 25 | "Te Necesito" | Luis Miguel | |
| November 1 | "Hoy" | Gloria Estefan | |
| November 8 | "Hoy" | Gloria Estefan | |
| November 15 | "Te Necesito" | Luis Miguel | |
| November 22 | "Mientes Tan Bien" | Sin Bandera | |
| November 29 | "Mientes Tan Bien" | Sin Bandera | |
| December 6 | "Mientes Tan Bien" | Sin Bandera | |
| December 13 | "Mientes Tan Bien" | Sin Bandera | |
| December 20 | "Mientes Tan Bien" | Sin Bandera | |
| December 27 | "Mientes Tan Bien" | Sin Bandera |