List of 1977 box office number-one films in the United States
# List of 1977 box office number-one films in the United States

This is a list of films which placed number one at the weekly box office in the United States during 1977 per Variety. The data was based on grosses from 20 to 22 key cities and therefore, the gross quoted may not be the total that the film grossed nationally in the week.

## Number-one films

| # | Week ending | Film | Gross | Notes |
| - | - | - | - | - |
| 1 | January 5, 1977 | King Kong | $3,025,159 | |
| 2 | January 12, 1977 | King Kong | $2,088,200 | |
| 3 | January 19, 1977 | King Kong | $1,206,064 | |
| 4 | January 26, 1977 | Rocky | $1,251,000 | Rocky reached number one in its ninth week on the chart |
| 5 | February 2, 1977 | Rocky | $1,135,500 | |
| 6 | February 9, 1977 | Rocky | $1,351,500 | |
| 7 | February 16, 1977 | Rocky | $1,710,167 | |
| 8 | February 23, 1977 | Rocky | $1,887,822 | |
| 9 | March 2, 1977 | Rocky | $1,715,985 | |
| 10 | March 9, 1977 | Rocky | $1,533,124 | |
| 11 | March 16, 1977 | Rocky | $1,212,454 | |
| 12 | March 23, 1977 | Rocky | $1,177,547 | |
| 13 | March 30, 1977 | Airport '77 | $1,350,700 | |
| 14 | April 6, 1977 | Rocky | $1,792,674 | Rocky returned to number one in its 19th week on the chart |
| 15 | April 13, 1977 | Rocky | $1,688,305 | |
| 16 | April 20, 1977 | Rocky | $1,277,740 | |
| 17 | April 27, 1977 | Rocky | $1,088,195 | |
| 18 | May 4, 1977 | It's Alive (reissue) | $786,250 | It's Alive reached number one in its 15th week on the chart |
| 19 | May 11, 1977 | Annie Hall | $855,733 | Annie Hall reached number one in its third week of release |
| 20 | May 18, 1977 | Annie Hall | $851,382 | |
| 21 | May 25, 1977 | The Greatest | $1,361,800 | |
| 22 | June 1, 1977 | Star Wars | $1,947,500 | Star Wars grossed $2,556,418 nationally in its first six days to the end of the Memorial Day weekend from 43 theaters. Smokey and the Bandit grossed $2,689,851 in the four-day weekend from 386 theaters |
| 23 | June 8, 1977 | Star Wars | $1,971,000 | |
| 24 | June 15, 1977 | Star Wars | $2,231,800 | |
| 25 | June 22, 1977 | The Deep | $3,033,800 | The Deep grossed $8,124,316 nationally from all markets in the weekend ended June 19, an opening weekend record |
| 26 | June 29, 1977 | The Deep | $2,931,262 | |
| 27 | July 6, 1977 | The Deep | $2,679,766 | |
| 28 | July 13, 1977 | Star Wars | $2,291,696 | Star Wars returned to number one in its seventh week of release grossing $6,197,462 nationally in the weekend ended July 10 |
| 29 | July 20, 1977 | Star Wars | $2,231,720 | Star Wars grossed $6,806,951 nationally in the weekend ended July 17 |
| 30 | July 27, 1977 | Star Wars | $2,789,667 | Star Wars grossed $7,000,644 nationally in the weekend ended July 24 |
| 31 | August 3, 1977 | Star Wars | $2,102,935 | Star Wars grossed $6,234,376 nationally (not including Canada theaters) in the weekend ended July 24 |
| 32 | August 10, 1977 | Star Wars | $3,620,800 | Star Wars grossed $7,195,573 nationally in the weekend ended August 7 |
| 33 | August 17, 1977 | Star Wars | $3,267,789 | Star Wars grossed $6,705,755 nationally in the weekend ended August 14 |
| 34 | August 24, 1977 | Star Wars | $2,784,881 | Star Wars grossed $5,908,751 nationally in the weekend ended August 21 |
| 35 | August 31, 1977 | Star Wars | $2,387,982 | Star Wars grossed $5,239,535 nationally in the weekend ended August 28 |
| 36 | September 7, 1977 | Star Wars | $2,330,800 | Star Wars grossed $7,737,847 nationally in the 4-day Labor Day weekend |
| 37 | September 14, 1977 | Star Wars | $1,661,131 | Star Wars grossed $4,648,085 nationally in the weekend ended September 11 |
| 38 | September 21, 1977 | Star Wars | $2,051,900 | Star Wars grossed $5,684,969 nationally in the weekend ended September 18 |
| 39 | September 28, 1977 | Star Wars | $2,005,746 | Star Wars grossed $5,117,235 nationally in the weekend ended September 25 |
| 40 | October 5, 1977 | Star Wars | $1,752,210 | Star Wars grossed $4,475,000 nationally in the weekend ended October 2 |
| 41 | October 12, 1977 | Star Wars | $1,446,583 | Star Wars grossed $4,538,323 nationally for the 4-day Columbus Day weekend |
| 42 | October 19, 1977 | Star Wars | $1,227,260 | |
| 43 | October 26, 1977 | Looking For Mr Goodbar | $1,293,400 | Star Wars placed second on the chart based on 104 theaters but grossed $2,891,000 nationally in the weekend ended October 23 compared to $1,540,635 for Looking For Mr Goodbar |
| 44 | November 2, 1977 | Oh, God! | $1,320,452 | Oh, God! reached number one in its fourth week of release. It grossed $1,508,511 nationally for the weekend ended October 30. Star Wars placed third on the chart based on 98 theaters but grossed $3,292,879 for the same period nationally from 739 theaters |
| 45 | November 9, 1977 | Looking For Mr Goodbar | $1,742,750 | Looking For Mr Goodbar returned to number one in its third week of release. Nationally it was only in 110 theaters; Star Wars placed third on the chart based on 104 theaters but in 665 theaters nationally it grossed $2,626,914 for the weekend ended November 6 |
| 46 | November 16, 1977 | Looking For Mr Goodbar | $1,194,150 | Looking For Mr Goodbar was only in 110 theaters nationally; Star Wars placed third on the chart based on 105 theaters but in 642 theaters nationally it grossed $2,269,052 for the weekend ended November 13 |
| 47 | November 23, 1977 | Looking For Mr Goodbar | $1,027,000 | Looking For Mr Goodbar expanded to 214 theaters nationally; Star Wars placed third on the chart based on 91 theaters but in 605 theaters nationally it grossed $1,949,157 for the weekend ended November 20 |
| 48 | November 30, 1977 | Star Wars | $1,283,735 | Star Wars returned to number one in its 27th week of release grossing $2,472,656 nationally for the weekend ended November 27 |
| 49 | December 7, 1977 | Oh, God! | $888,857 | Oh, God! returned to number one in its ninth week of release |
| 50 | December 14, 1977 | Star Wars | $585,541 | Star Wars returned to number one in its 29th week of release grossing $1,152,953 nationally for the weekend ended December 11 |
| 51 | December 21, 1977 | Close Encounters of the Third Kind | $3,856,656 | Close Encounters of the Third Kind reached number one in its fifth week of release and grossed $5,379,460 nationally from all markets in the weekend ended December 18 |
| 52 | December 28, 1977 | Close Encounters of the Third Kind | $3,868,450 | |
