List of Oricon number-one singles of 2006
# List of Oricon number-one singles of 2006

The highest-selling singles in Japan are ranked in the Oricon Singles Chart, which is published by Oricon Style magazine. The data are compiled by Oricon based on each singles' physical sales. This list includes the singles that reached the number one place on that chart in 2006.

## Oricon Weekly Singles Chart

| Issue date | Song | Artist(s) |
| - | - | - |
| January 2 | "SNOW! SNOW! SNOW!" | KinKi Kids |
| January 16 | "Seishun Amigo" | Shūji to Akira |
| January 23 | "Feel" | Kumi Koda |
| January 30 | "Venus" | Tackey and Tsubasa |
| February 6 | "Shōdō" | B'z |
| February 13 | "Yoshino Cherry" | Tsuyoshi Domoto |
| February 20 | "Mr. Traveling Man" | Tokio |
| February 27 | "World Apart" | Asian Kung-Fu Generation |
| March 6 | "Season's Call" | Hyde |
| March 13 | "Yes!" | Exile |
| March 20 | "Startin'/Born to Be..." | Ayumi Hamasaki |
| March 27 | "Sayaendō/Hadashi no Cinderella Boy" | News |
| April 3 | "Real Face" | KAT-TUN |
| April 10 | "Real Face" | KAT-TUN |
| April 17 | "Real Face" | KAT-TUN |
| April 24 | "Yuruginai Mono Hitotsu" | B'z |
| May 1 | "Dear Woman" | SMAP |
| May 8 | "Tabiudo" | Ketsumeishi |
| May 15 | | Ketsumeishi |
| May 22 | "Champione" | Orange Range |
| May 29 | "Kitto Daijōbu" | Arashi |
| June 5 | "Milk Tea/Utsukushiki Hana" | Masaharu Fukuyama |
| June 12 | "Daite Señorita" | Tomohisa Yamashita |
| June 19 | "Splash!" | B'z |
| June 26 | "Good Day!!" | V6 |
| July 3 | "Blue Bird" | Ayumi Hamasaki |
| July 10 | "The Rainbow Star" | Tsuyoshi Domoto |
| July 17 | "Houkiboshi" | Mr. Children |
| July 24 | "Deep in your heart/+Million But -Love" | Koichi Domoto |
| July 31 | "Signal" | KAT-TUN |
| August 7 | "Natsu Moyō" | KinKi Kids |
| August 14 | "Aozora Pedal" | Arashi |
| August 21 | "Dirty Old Man ~Saraba Natsu yo~" | Southern All Stars |
| August 28 | "Akatsuki no Uta" | Sukima Switch |
| September 4 | "Sorafune/Do! Do! Do!" | Tokio |
| September 11 | "Fever to Future" | Golf & Mike |
| September 18 | "Taiyou no Uta" | Erika Sawajiri |
| September 25 | "Natsuoto/Henna Yume: Thousand Dreams" | Glay |
| October 2 | "Taiyou no Uta" | Erika Sawajiri |
| October 9 | "Mikazuki" | Ayaka |
| October 16 | "Winding Road" | Porno Graffitti |
| October 23 | "Arigato" | SMAP |
| October 30 | "Yume no Uta/Futari de..." | Kumi Koda |
| November 6 | "Seaside Byebye" | Kisarazu Cat's Eye & MCU |
| November 13 | "Ready Go!" | WaT |
| November 20 | "Aruiteru" | Morning Musume |
| November 27 | "Shirushi" | Mr. Children |
| December 4 | "Namida no Furusato" | Bump of Chicken |
| December 11 | "Harmony of December" | KinKi Kids |
| December 18 | "Bokura no Machi de" | KAT-TUN |
| December 25 | "Kan Fu Fighting" | Kanjani Eight |
