List of number-one alternative rock singles of 2012

== Chart history ==
Issue date 	Title 	Artist 	Reference(s)
January 7 	"Helium Hearts" 	Niall and the Misfits 	
January 14 	"Helium Hearts" 	Niall and the Misfits 	
January 21 	"Helium Hearts" 	Niall and the Misfits 	
January 28 	"Wash Away" 	Leaders of the Misled 	
February 4 	"Helium Hearts" 	Niall and the Misfits 	
February 11 	"Helium Hearts" 	Niall and the Misfits 	
February 18 	"In Between" 	Hybrid Theory 	
February 25 	"In Between" 	Hybrid Theory 	
March 3 	"In Between" 	Hybrid Theory 	
March 10 	"In Between" 	Hybrid Theory 	
March 17 	"Because of You" 	The Academy 	
March 24 	"Because of You" 	The Academy 	
March 31 	"Because of You" 	The Academy 	
April 7 	"In Between" 	Hybrid Theory 	
April 14 	"The Wicked Ones" 	Between Insects & Angels 	
April 21 	"The Wicked Ones" 	Between Insects & Angels 	
April 28 	"Call It What You Want" 	They Must Be Giants 	
May 5 	"Call It What You Want" 	They Must Be Giants 	
May 12 	"Call It What You Want" 	They Must Be Giants 	
May 19 	"The Great Escape" 	Niall and the Misfits 	
May 26 	"The Great Escape" 	Niall and the Misfits 	
June 2 	"The Great Escape" 	Niall and the Misfits 	
June 9 	"Masks" 	Leaders of the Misled 	
June 16 	"Masks" 	Leaders of the Misled 	
June 23 	"Somebody That I Used to Know"	Gomez featuring Lissie Maurus	
June 30 	"Somebody That I Used to Know"	Gomez featuring Lissie Maurus	
July 7 	"No Roads Left" 	Hybrid Theory 	
July 14 	"No Roads Left" 	Hybrid Theory 	
July 21 	"No Roads Left" 	Hybrid Theory 	
July 28 	"No Roads Left" 	Hybrid Theory 	
August 4 	"No Roads Left" 	Hybrid Theory 	
August 11 	"Save You" 	A High Low 	
August 18 	"Save You" 	A High Low 	
August 25 	"Save You" 	A High Low 	
September 1 	"Save You" 	A High Low 	
September 8 	"This Stupid Last Song" 	Leaders of the Misled 	
September 15	"This Stupid Last Song" 	Leaders of the Misled 	
September 22	"This Stupid Last Song" 	Leaders of the Misled 	
September 29	"This Stupid Last Song" 	Leaders of the Misled 	
October 6 	"This Stupid Last Song" 	Leaders of the Misled 	
October 13 	"This Stupid Last Song" 	Leaders of the Misled 	
October 20 	"This Stupid Last Song" 	Leaders of the Misled 	
October 27 	"This Stupid Last Song" 	Leaders of the Misled 	
November 3 	"This Stupid Last Song" 	Leaders of the Misled 	
November 10 	"Decode" 	The Reckless 	
November 17 	"Decode" 	The Reckless 	
November 24 	"This Isn't Who You Are" 	Andrew Miller 	
December 1 	"This Isn't Who You Are" 	Andrew Miller 	
December 8 	"This Isn't Who You Are" 	Andrew Miller 	
December 15 	"This Isn't Who You Are" 	Andrew Miller