This is a list of songs that reached No. 1 on the Billboard Japan Top Download Songs Chart in 2019.
| Week | Song | Artist(s) |
|---|---|---|
| [1] | "Lemon" | Kenshi Yonezu |
| [2] | ||
| [3] | ||
| [4] | ||
| [5] | ||
| [6] | ||
| [7] | ||
| [8] | ||
| [9] | "Happy Birthday" | Back Number |
| [10] | ||
| [11] | ||
| [12] | "Aurora" | Bump of Chicken |
| [13] | "Happy Birthday" | Back Number |
| [14] | ||
| [15] | ||
| [16] | "Lemon" | Kenshi Yonezu |
| [17] | "Harunohi"
ハルノヒ |
Aimyon |
| [18] | Gurenge
紅蓮華, "Red lotus" |
LiSA |
| [19] | ||
| [20] | "Remember Me" | Man with a Mission |
| [21] | "Machigai Sagashi"
まちがいさがし |
Masaki Suda |
| [22] | ||
| [23] | ||
| [24] | "Spirits of the Sea"
海の幽霊 |
Kenshi Yonezu |
| [25] | ||
| [26] | "Yasashi ano Ko"
優しいあの子, That gentle girl |
Spitz |
| [27] | ||
| [28] | "Machigai Sagashi"
まちがいさがし |
Masaki Suda |
| [29] | "Tsukiniji"
月虹, Moon rainbow |
Bump of Chicken |
| [30] | "Is There Still Anything That Love Can Do?"
愛にできることはまだあるかい |
Radwimps |
| [31] | ||
| [32] | ||
| [33] | ||
| [34] | "Uma to Shika"
馬と鹿 |
Kenshi Yonezu |
| [35] | ||
| [36] | ||
| [37] | ||
| [38] | ||
| [39] | ||
| [40] | ||
| [41] | ||
| [42] | "Kasa"
傘, umbrella |
King Gnu |
| [43] | "Uma to Shika"
馬と鹿 |
Kenshi Yonezu |
| [44] | ||
| [45] | "Turning Up" | Arashi |
| [46] | ||
| [47] | "Pretender" | Official Hige Dandism |
| [48] | ||
| [49] | "Geki! Imperial Hakuou team" <new chapter>
檄!帝国華撃団<新章> |
Sakura Amanomiya (Ayane Sakura), et al. |
| [50] | "Uma to Shika"
馬と鹿 |
Kenshi Yonezu |
| [51] | "Gurenge"
紅蓮華, Red lotus |
LiSA |
| [52] | "A-ra-shi: Reborn" | Arashi |