List of Hot 100 number-one singles of 2020 (Japan)

The following is a list of number-one singles on the Billboard Japan Hot 100 chart in 2020.

Chart history
Issue date Song Artist(s) Ref.
January 6 "Pretender" Official Hige Dandism [1]
January 13 [2]
January 20 [3]
January 27 "Sōyūtoko Aru yo ne?" SKE48 [4]
February 3 "Imitation Rain" SixTones [5]
February 10 "Mubou na Yume wa Sameru Koto ga Nai" STU48 [6]
February 17 "I Love..." Official Hige Dandism [7]
February 24 [8]
March 2 "Sonna Koto Nai yo" Hinatazaka46 [9]
March 9 "I Am" Hey! Say! JUMP [10]
March 16 "Mugendai" JO1 [11]
March 23 "I Love..." Official Hige Dandism [12]
March 30 "Shitsuren, Arigatō" AKB48 [13]
April 6 "Shiawase no Hogoshoku" Nogizaka46 [14]
April 13 "Fallin' Flower" Seventeen [15]
April 20 "I Love..." Official Hige Dandism [16]
April 27 [17]
May 4 "3−2" HKT48 [18]
May 11 "I Love..." Official Hige Dandism [19]
May 18 [20]
May 25 "Kōsui" Eito [21]
June 1 "Yoru ni Kakeru" Yoasobi [22]
June 8 [23]
June 15 [24]
June 22 "Mazy Night" King & Prince [25]
June 29 "Kanzai Boya" KinKi Kids [26]
July 6 "Shōko" Johnny's West [27]
July 13 "Last Mermaid..." Hey! Say! JUMP [28]
July 20 "Fanfare" Twice [29]
July 27 "Yoru ni Kakeru" Yoasobi [30]
August 3 "Navigator" SixTones [31]
August 10 "Kite" Arashi [32]
August 17 "Run" Sexy Zone [33]
August 24 "Smile" Twenty Twenty [34]
August 31 "Re:Live" Kanjani Eight [35]
September 7 "Oh-Eh-Oh" JO1 [36]
September 14 "Omoidaseru Koi wo Shiyō" STU48 [37]
September 21 "Yoru ni Kakeru" Yoasobi [38]
September 28 "Endless Summer" Kis-My-Ft2 [39]
October 5 "Yoru ni Kakeru" Yoasobi [40]
October 12 "Your Song" Hey! Say! JUMP [41]
October 19 "Kissin' My Lips" Snow Man [42]
October 26 "Homura" LiSA [43]
November 2 [44]
November 9 [45]
November 16 [46]
November 23 "New Era" SixTones [47]
November 30 "Homura" LiSA [48]
December 7 [49]
December 14 "Step and a Step" NiziU [50]
December 21 "Nobody's Fault" Sakurazaka46 [51]
December 28 "I Promise" King & Prince [52]

References
  1. "Billboard Japan Hot 100 2020/1/6". Billboard Japan (in Japanese). Retrieved January 8, 2020.
  2. "Billboard Japan Hot 100 2020/1/13". Billboard Japan (in Japanese). Retrieved January 8, 2020.
  3. "Billboard Japan Hot 100 2020/1/20". Billboard Japan (in Japanese). Retrieved January 16, 2020.
  4. "Billboard Japan Hot 100 2020/1/27". Billboard Japan (in Japanese). Retrieved January 22, 2020.
  5. "Billboard Japan Hot 100 2020/2/3". Billboard Japan (in Japanese). Retrieved January 29, 2020.
  6. "Billboard Japan Hot 100 2020/2/10". Billboard Japan (in Japanese). Retrieved February 5, 2020.
  7. "Billboard Japan Hot 100 2020/2/17". Billboard Japan (in Japanese). Retrieved February 13, 2020.
  8. "Billboard Japan Hot 100 2020/2/24". Billboard Japan (in Japanese). Retrieved February 20, 2020.
  9. "Billboard Japan Hot 100 2020/3/2". Billboard Japan (in Japanese). Retrieved February 26, 2020.
  10. "Billboard Japan Hot 100 2020/3/9". Billboard Japan (in Japanese). Retrieved March 9, 2020.
  11. "Billboard Japan Hot 100 2020/3/16". Billboard Japan (in Japanese). Retrieved March 11, 2020.
  12. "Billboard Japan Hot 100 2020/3/23". Billboard Japan (in Japanese). Retrieved March 20, 2020.
  13. "Billboard Japan Hot 100 2020/3/30". Billboard Japan (in Japanese). Retrieved March 26, 2020.
  14. "Billboard Japan Hot 100 2020/4/6". Billboard Japan (in Japanese). Retrieved April 1, 2020.
  15. "Billboard Japan Hot 100 2020/4/13". Billboard Japan (in Japanese). Retrieved April 8, 2020.
  16. "Billboard Japan Hot 100 2020/4/20". Billboard Japan (in Japanese). Retrieved April 15, 2020.
  17. "Billboard Japan Hot 100 2020/4/27". Billboard Japan (in Japanese). Retrieved April 22, 2020.
  18. "Billboard Japan Hot 100 2020/5/4". Billboard Japan (in Japanese). Retrieved April 29, 2020.
  19. "Billboard Japan Hot 100 2020/5/11". Billboard Japan (in Japanese). Retrieved May 6, 2020.
  20. "Billboard Japan Hot 100 2020/5/18". Billboard Japan (in Japanese). Retrieved May 13, 2020.
  21. "Billboard Japan Hot 100 2020/5/25". Billboard Japan (in Japanese). Retrieved May 27, 2020.
  22. "Billboard Japan Hot 100 2020/6/1". Billboard Japan (in Japanese). Retrieved May 27, 2020.
  23. "Billboard Japan Hot 100 2020/6/8". Billboard Japan (in Japanese). Retrieved June 3, 2020.
  24. "Billboard Japan Hot 100 2020/6/15". Billboard Japan (in Japanese). Retrieved June 10, 2020.
  25. "Billboard Japan Hot 100 2020/6/22". Billboard Japan (in Japanese). Retrieved June 17, 2020.
  26. "Billboard Japan Hot 100 2020/6/29". Billboard Japan (in Japanese). Retrieved June 24, 2020.
  27. "Billboard Japan Hot 100 2020/7/6". Billboard Japan (in Japanese). Retrieved July 2, 2020.
  28. "Billboard Japan Hot 100 2020/7/13". Billboard Japan (in Japanese). Retrieved July 8, 2020.
  29. "Billboard Japan Hot 100 2020/7/20". Billboard Japan (in Japanese). Retrieved July 15, 2020.
  30. "Billboard Japan Hot 100 2020/7/27". Billboard Japan (in Japanese). Retrieved July 28, 2020.
  31. "Billboard Japan Hot 100 2020/8/3". Billboard Japan (in Japanese). Retrieved July 29, 2020.
  32. "Billboard Japan Hot 100 2020/8/10". Billboard Japan (in Japanese). Retrieved August 5, 2020.
  33. "Billboard Japan Hot 100 2020/8/17". Billboard Japan (in Japanese). Retrieved August 12, 2020.
  34. "Billboard Japan Hot 100 2020/8/24". Billboard Japan (in Japanese). Retrieved August 21, 2020.
  35. "Billboard Japan Hot 100 2020/8/31". Billboard Japan (in Japanese). Retrieved August 27, 2020.
  36. "Billboard Japan Hot 100 2020/9/7". Billboard Japan (in Japanese). Retrieved September 2, 2020.
  37. "Billboard Japan Hot 100 2020/9/14". Billboard Japan (in Japanese). Retrieved September 9, 2020.
  38. "Billboard Japan Hot 100 2020/9/21". Billboard Japan (in Japanese). Retrieved September 16, 2020.
  39. "Billboard Japan Hot 100 2020/9/28". Billboard Japan (in Japanese). Retrieved September 23, 2020.
  40. "Billboard Japan Hot 100 2020/10/5". Billboard Japan (in Japanese). Retrieved October 1, 2020.
  41. "Billboard Japan Hot 100 2020/10/12". Billboard Japan (in Japanese). Retrieved October 7, 2020.
  42. "Billboard Japan Hot 100 2020/10/19". Billboard Japan (in Japanese). Retrieved October 14, 2020.
  43. "Billboard Japan Hot 100 2020/10/26". Billboard Japan (in Japanese). Archived from the original on October 21, 2020. Retrieved October 21, 2020.
  44. "Billboard Japan Hot 100 2020/11/2". Billboard Japan (in Japanese). Retrieved October 28, 2020.
  45. "Billboard Japan Hot 100 2020/11/9". Billboard Japan (in Japanese). Retrieved November 5, 2020.
  46. "Billboard Japan Hot 100 2020/11/16". Billboard Japan (in Japanese). Retrieved November 11, 2020.
  47. "Billboard Japan Hot 100 2020/11/23". Billboard Japan (in Japanese). Retrieved November 18, 2020.
  48. "Billboard Japan Hot 100 2020/11/30". Billboard Japan (in Japanese). Retrieved November 25, 2020.
  49. "Billboard Japan Hot 100 2020/12/7". Billboard Japan (in Japanese). Retrieved December 2, 2020.
  50. "Billboard Japan Hot 100 2020/12/14". Billboard Japan (in Japanese). Retrieved December 10, 2020.
  51. "Billboard Japan Hot 100 2020/12/21". Billboard Japan (in Japanese). Retrieved December 17, 2020.
  52. "Billboard Japan Hot 100 2020/12/28". Billboard Japan (in Japanese). Retrieved December 23, 2020.
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