List of number-one Billboard Regional Mexican Songs of 2005

The Billboard Regional Mexican Songs chart ranks the best-performing Regional Mexican singles in the United States. Published weekly by Billboard magazine, it ranks the "most popular regional Mexican songs, ranked by radio airplay audience impressions as measured by Nielsen Music."

Chart history

Issue date	Song	Artist(s)	Ref.
January 1	"El virus del amor"	Los Tucanes de Tijuana
January 8	"Está llorando mi corazón"	Beto y sus Canarios
January 15	"El virus del amor"	Los Tucanes de Tijuana
January 22
January 29
February 5
February 12
February 19	"Hoy como ayer"	Conjunto Primavera
February 26
March 5	"Aire"	Intocable
March 12
March 19	"Hoy como ayer"	Conjunto Primavera
March 26
April 2
April 9
April 16	"Aire"	Intocable
April 23	"Hoy como ayer"	Conjunto Primavera
April 30
May 7
May 14
May 21
May 28	"La sorpresa"	Los Tigres del Norte
June 4	"Ni en defensa propia"	Los Temerarios
June 11
June 18	"La sorpresa"	Los Tigres del Norte
June 25	"Eres divina"	Patrulla 81
July 2
July 9
July 16
July 23	"Dueño de ti"	Sergio Vega "El Shaka"
July 30	"Eres divina"	Patrulla 81
August 6	"Ya me habían dicho"	Lupillo Rivera
August 13
August 20	"Eres divina"	Patrulla 81
August 27
September 3
September 10
September 17
September 24	"No puedo olvidarte"	Beto y sus Canarios
October 1
October 8
October 15
October 22	"Aún sigues siendo mía"	Conjunto Primavera
October 29
November 5	"No puedo olvidarte"	Beto y sus Canarios
November 12
November 19
November 26
December 3
December 10
December 17
December 24
December 31