This is a list of the best-selling singles in 2020 in Japan, with physical and digital sales taken from Oricon year-end chart.
Combined sales
Title Artist Point 1 "Imitation Rain / D.D." SixTones vs Snow Man 1,780,306 2 "Shiawase no Hogoshoku" Nogizaka46 1,265,582 3 "Shitsuren, Arigatō" AKB48 1,187,338 4 "Kite" Arashi 1,155,114 5 "Step and a Step" NiziU 1,052,471 6 "Gurenge" LiSA 1,048,345 7 "Kissin' My Lips / Stories" Snow Man 1,030,718 8 "Homura" LiSA 948,730 9 "Yoru ni Kakeru" Yoasobi 917,753 10 "I Love…" Official Hige Dandism 878,495
Physical sales
Title Artist Sales 1 "Imitation Rain / D.D." SixTones vs Snow Man 1,760,904 2 "Shitsuren, Arigatō" AKB48 1,181,701 3 "Kite" Arashi 1,147,865 4 "Shiawase no Hogoshoku" Nogizaka46 1,115,150 5 "Kissin' My Lips / Stories" Snow Man 1,001,570 6 "Navigator" SixTones 707,699 7 "Sonna Koto Nai yo" Hinatazaka46 644,135 8 "Mazy Night" King & Prince 591,673 9 "Smile" Twenty★Twenty 502,143 10 "New Era" SixTones 480,379 11 "Mai Ochiru Hanabira (Faillin' Flower)" Seventeen 426,988 12 "Nobody's Fault" Sakurazaka46 408,926 13 Protostar ("Infinity") JO1 372,820 14 "Re:Live" Kanjani Eight 351,054 15 "Step and a Step" NiziU 344,661 16 "Sōyūtoko Aru yo ne?" SKE48 325,609 17 Stargazer ("Oh-Eh-Oh") JO1 312,404 18 "Mubō na Yume wa Sameru Koto ga Nai" STU48 292,738 19 "Run" Sexy Zone 272,746 20 "Not Found" Sexy Zone 262,677 21 "Night Diver" Haruma Miura 245,007 22 "Homura" LiSA 232,510 23 "Shōko" Johnny's West 231,467 24 "I am / Muah Muah" Hey! Say! Jump 226,381 25 "Your Song" Hey! Say! Jump 224,568
Digital sales (single track)
Title Artist Sales 1 "Gurenge" LiSA 942,691 2 "Homura" LiSA 709,966 3 "I Love…" Official Hige Dandism 638,058 4 "Yoru ni Kakeru" Yoasobi 539,090 5 "Pretender" Official Hige Dandism 538,314 6 "Hakujitsu" King Gnu 513,603 7 "Kanden" Kenshi Yonezu 499,084 8 "Hadaka no Kokoro" ("Naked Heart") Aimyon 403,820 9 "Kōsui" Eito 499,084 10 "Uma to Shika" Kenshi Yonezu 317,060
See also List of Oricon number-one singles of 2020
References