These are the Oricon number-one albums of 2003, per the Oricon Albums Chart. 
  Chart history
  Key   | †  |  Indicates best-selling album of 2003  | 
    | Issue Date[1]  |  Album  |  Sales  |  Artist(s)  | 
  | January 13[2] |  Rainbow |  571,027 |  Ayumi Hamasaki  | 
  | January 20 |  Second to None † |  1,075,872 |  Chemistry  | 
  | January 27 |  402,109  | 
  | February 3 |  Life Is... |  351,258 |  Ken Hirai  | 
  | February 10[3] |  Valenti |  615,218 |  BoA  | 
  | February 17 |  222,851  | 
  | February 24 |  Styles of Beyond |  145,102 |  Exile  | 
  | March 3 |  Kalk Samen Kuri No Hana |  165,316 |  Ringo Shiina  | 
  | March 10 |  136,214  | 
  | March 17 |  200 km/h in the Wrong Lane |  64,503 |  t.A.T.u.  | 
  | March 24[4] |  A Ballads |  561,127 |  Ayumi Hamasaki  | 
  | March 31 |  Sumire |  256,327 |  Yuzu  | 
  | April 7[5] |  No. 5 |  122,136 |  Morning Musume.  | 
  | April 14 |  Many Pieces |  53,715 |  Every Little Thing  | 
  | April 21 |  200 km/h in the Wrong Lane |  47,857 |  t.A.T.u.  | 
  | April 28 |  Street Story |  106,278 |  HY  | 
  | May 5 |  103,245  | 
  | May 12 |  93,736  | 
  | May 19 |  86,912  | 
  | May 26 |  Keep On Fighting |  90,524 |  Tsuyoshi Nagabuchi  | 
  | June 2[6] |  200 km/h in the Wrong Lane |  61,529 |  t.A.T.u.  | 
  | June 9 |  8 Mile: Music from and Inspired by the Motion Picture |  54,216 |  Various Artists  | 
  | June 16 |  48,761  | 
  | June 23 |  St. Anger |  51,416 |  Metallica  | 
  | June 30 |  Between the Lines |  361,265 |  Chemistry  | 
  | July 7 |  Smap 016/MIJ |  305,268 |  SMAP  | 
  | July 14 |  Between the Lines |  66,213 |  Chemistry  | 
  | July 21 |  If I Believe |  251,218 |  Mai Kuraki  | 
  | July 28 |  Time to Go |  225,671 |  Rip Slyme  | 
  | August 4 |  Harvest |  252,812 |  Dragon Ash  | 
  | August 11 |  Yuzu Smile |  115,458 |  Yuzu  | 
  | August 18 |  Infinity: Love and Life |  75,412 |  V6  | 
  | August 25[7] |  Beautiful Energy |  118,568 |  Twelve Girls Band  | 
  | September 1 |  201,241  | 
  | September 8 |  Magnum Collection "Slow" |  211,457 |  Masaharu Fukuyama  | 
  | September 15 |  Nomad Soul |  125,645 |  Chitose Hajime  | 
  | September 22 |  Every Best Single 2 |  281,571 |  Every Little Thing  | 
  | September 29 |  Big Machine |  500,237 |  B'z  | 
  | October 6[8] |  Road of Major |  290,751 |  Road of Major  | 
  | October 13 |  Ketsunopolis 3 |  97,821 |  Ketsumeishi  | 
  | October 20 |  290,751  | 
  | October 27[9] |  A.I.R |  95,243 |  Rina Aiuchi  | 
  | November 3 |  G Album: 24/7 |  242,826 |  KinKi Kids  | 
  | November 10 |  Longtime Favorites |  143,218 |  Mariya Takeuchi  | 
  | November 17 |  Love |  437,218 |  Mika Nakashima  | 
  | November 24 |  213,517  | 
  | December 1 |  Best Album 2001-2003 |  155,768 |  Kick the Can Crew  | 
  | December 8[10] |  Akatsuki no Love Letter |  232,422 |  Aiko  | 
  | December 15 |  Exile Entertainment |  395,257 |  Exile  | 
  | December 22 |  195,741  | 
  | December 29[11] |  Memorial Address |  524,028 |  Ayumi Hamasaki  | 
 
 Annual
  See also
  References
   - ^ See weekly issues of Oricon magazine with these dates. See also Youtaiju. 
  - ^ アルバム BEST50. Weekly Ranking. Oricon entertainment site. 13 January 2003. 
  - ^ アルバム BEST50. Weekly Ranking. Oricon entertainment site. 10 February 2003. 
  - ^ アルバム BEST30. Weekly Ranking. Oricon entertainment site. 24 March 2003. 
  - ^ アルバム BEST30. Weekly Ranking. Oricon entertainment site. 7 April 2003. 
  - ^ アルバム BEST30. Weekly Ranking. Oricon entertainment site. 2 June 2003. 
  - ^ アルバム BEST30. Weekly Ranking. Oricon entertainment site. 25 August 2003. 
  - ^ アルバム BEST30. Weekly Ranking. Oricon entertainment site. 6 October 2003. 
  - ^ アルバム BEST30. Weekly Ranking. Oricon entertainment site. 27 October 2003. 
  - ^ アルバム BEST30. Weekly Ranking. Oricon entertainment site. 8 December 2003. 
  - ^ アルバム BEST30. Weekly Ranking. Oricon entertainment site. 29 December 2003. 
  
  External links