1966

The following is a list of the number-one singles (main sides only) in the U.S. in 1966, based on a comparison between its three main charts at the time, from Billboard, Cash Box and Record World magazines.
Issue date 	Song 	Artist(s)
January 1 	"We Can Work It Out" 	The Beatles
January 8 	"We Can Work It Out" 	The Beatles
January 15 	"We Can Work It Out" 	The Beatles
January 22 	"The Sound of Silence" 	Simon & Garfunkel
January 29 	"We Can Work It Out" 	The Beatles
February 2 	"Barbara Ann" 	The Beach Boys
February 12 	"My Love" 	Petula Clark
February 19 	"Lightnin' Strikes" 	Lou Christie
February 26 	"These Boots Are Made for Walkin'"	Nancy Sinatra
March 5 	"The Ballad of the Green Berets" 	SSgt. Barry Sadler
March 12 	"The Ballad of the Green Berets" 	SSgt. Barry Sadler
March 19 	"The Ballad of the Green Berets" 	SSgt. Barry Sadler
March 26 	"The Ballad of the Green Berets" 	SSgt. Barry Sadler
April 2 	"19th Nervous Breakdown" 	The Rolling Stones
April 9 	"Daydream" 	The Lovin' Spoonful
April 16 	"(You're My) Soul and Inspiration"	The Righteous Brothers
April 23 	"(You're My) Soul and Inspiration"	The Righteous Brothers
April 30 	"Good Lovin'" 	The Rascals
May 8 	"Monday, Monday" 	The Mamas & The Papas
May 15 	"Monday, Monday" 	The Mamas & The Papas
May 22 	"Monday, Monday" 	The Mamas & The Papas
May 29 	"When a Man Loves a Woman" 	Percy Sledge
June 4 	"When a Man Loves a Woman" 	Percy Sledge
June 11 	"Paint It Black" 	The Rolling Stones
June 18 	"Paint It Black" 	The Rolling Stones
June 25 	"Paperback Writer" 	The Beatles
July 2 	"Paperback Writer" 	The Beatles
July 9 	"Paperback Writer" 	The Beatles
July 16 	"Hanky Panky" 	Tommy James & The Shondells
July 23 	"Wild Thing" 	The Troggs
July 30 	"Wild Thing" 	The Troggs
August 6 	"Li'l Red Riding Hood" 	Sam the Sham & The Pharaohs
August 13 	"Summer in the City" 	The Lovin' Spoonful
August 20 	"Summer in the City" 	The Lovin' Spoonful
August 27 	"Sunny" 	Bobby Hebb
September 3 	"Sunshine Superman" 	Donovan
September 10	"Yellow Submarine" 	The Beatles
September 17	"You Can't Hurry Love" 	The Supremes
September 24	"Cherish" 	The Association
October 1 	"Cherish" 	The Association
October 8 	"Cherish" 	The Association
October 15 	"Reach Out I'll Be There" 	Four Tops
October 22 	"96 Tears" 	? & The Mysterians
October 29 	"Last Train to Clarksville" 	The Monkees
November 5 	"Last Train to Clarksville" 	The Monkees
November 12 	"Poor Side of Town" 	Johnny Rivers
November 19 	"You Keep Me Hangin' On" 	The Supremes
November 26 	"You Keep Me Hangin' On" 	The Supremes
December 3 	"You Keep Me Hangin' On" 	The Supremes
December 10 	"Winchester Cathedral" 	The New Vaudeville Band
December 17 	"Winchester Cathedral" 	The New Vaudeville Band
December 24 	"Winchester Cathedral" 	The New Vaudeville Band
December 31 	"I'm a Believer" 	The Monkees