This is a list of films which have placed number one at the weekend box office in Japan during 2011.
| Date | Film | Gross | Notes | |
|---|---|---|---|---|
| 1 | Gantz | $14,788,986 | ||
| 2 | $18,462,208 | |||
| 3 | The Social Network | $13,015,217 | ||
| 4 | $12,550,966 | |||
| 5 | Unstoppable | $2,747,653 | ||
| 6 | Gantz | $16,668,765 | ||
| 7 | Hereafter | $31,111,742 | ||
| 8 | $16,693,133 | |||
| 9 | $20,399,714 | |||
| 10 | SP: The Motion Picture II | $12,256,453 | ||
| 11 | $17,320,450 | |||
| 12 | $17,124,995 | |||
| 13 | $18,197,301 | |||
| 14 | $12,344,643 | |||
| 15 | $19,230,726 | |||
| 16 | Gantz: Perfect Answer | $20,290,149 | ||
| 17 | Detective Conan: Quarter of Silence | $20,290,149 | ||
| 18 | Gaku: Minna no Yama | $13,843,743 | ||
| 19 | Black Swan | $13,000,858 | ||
| 20 | $27,081,618 | |||
| 21 | $23,240,411 | |||
| 22 | $21,244,530 | |||
| 23 | $26,244,971 | |||
| 24 | $19,254,560 | |||
| 25 | $18,724,720 | |||
| 26 | Super 8 | $15,929,725 | ||
| 27 | Pirates of the Caribbean: On Stranger Tides | $11,980,622 | ||
| 28 | Harry Potter and the Deathly Hallows – Part 2 | $26,681,963 | ||
| 29 | $20,394,041 | |||
| 30 | $30,266,577 | |||
| 31 | $26,237,614 | |||
| 32 | Harry Potter and the Deathly Hallows – Part 2 | $27,278,499 | ||
| 33 | $25,687,868 | |||
| 34 | In His Chart | $18,796,358 | ||
| 35 | One Life | $15,694,489 | ||
| 36 | Detective in the Bar | $12,849,843 | ||
| 37 | $17,098,154 | |||
| 38 | Moteki | $14,129,696 | ||
| 39 | Fast Five | $20,319,711 | ||
| 40 | Rise of the Planet of the Apes | $17,281,604 | ||
| 41 | $12,907,568 | |||
| 42 | $12,555,848 | |||
| 43 | A Ghost of a Chance | $19,030,166 | ||
| 44 | $19,190,741 | |||
| 45 | $15,430,084 | |||
| 46 | $13,068,848 | |||
| 47 | Eiga Kaibutsukun | $15,940,384 | ||
| 48 | $19,008,853 | |||
| 49 | $21,550,334 | |||
| 50 | $21,728,656 | |||
| 51 | $22,484,033 | |||
| 52 | $13,863,716 |
Web site: Japanese Weekend Box Office Index, 2010 . . Box Office Mojo, LLC . 2011-01-08 . Note: Click on the relevant weekend to view specifics.
| Rank | Title | Gross[1] | |
|---|---|---|---|
| 1 | Harry Potter and the Deathly Hallows – Part 2 | ||
| 2 | |||
| 3 | Harry Potter and the Deathly Hallows – Part 1 | ||
| 4 |  From Up on Poppy Hill | ||
| 5 | | ||
| 6 | A Ghost of a Chance | ||
| 7 | |||
| 8 | Space Battleship Yamato | ||
| 9 | Gantz | ||
| 10 | SP: The Motion Picture II |