List of 1975 box office number-one films in the United States
# List of 1975 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 1975, per Variety. The data was based on grosses from 20 to 24 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 1, 1975 | The Godfather Part II | $1,872,700 | |
| 2 | January 8, 1975 | The Godfather Part II | $1,473,000 | |
| 3 | January 15, 1975 | The Towering Inferno | $1,158,400 | The Towering Inferno reached number one in its fourth week on the chart |
| 4 | January 22, 1975 | Murder on the Orient Express | $1,011,700 | Murder on the Orient Express reached number one in its eighth week on the chart |
| 5 | January 29, 1975 | Murder on the Orient Express | $1,133,300 | |
| 6 | February 5, 1975 | Young Frankenstein | $1,130,440 | Young Frankenstein reached number one in its seventh week on the chart |
| 7 | February 12, 1975 | The Towering Inferno | $1,171,579 | The Towering Inferno returned to number one in its eighth week on the chart |
| 8 | February 19, 1975 | The Towering Inferno | $1,580,114 | |
| 9 | February 26, 1975 | The Towering Inferno | $1,112,071 | |
| 10 | March 5, 1975 | The Towering Inferno | $964,550 | |
| 11 | March 12, 1975 | The Towering Inferno | $1,003,132 | |
| 12 | March 19, 1975 | Funny Lady | $1,072,254 | Funny Lady grossed $2,254,3851 in its first five days nationally |
| 13 | March 26, 1975 | The Godfather Part II | $1,357,143 | The Godfather Part II returned to number one in its 15th week of release |
| 14 | April 2, 1975 | The Godfather Part II | $1,509,856 | |
| 15 | April 9, 1975 | The Godfather Part II | $1,184,325 | |
| 16 | April 16, 1975 | The Godfather Part II | $1,161,950 | |
| 17 | April 23, 1975 | The Godfather Part II | $792,400 | |
| 18 | April 30, 1975 | Alice Doesn't Live Here Anymore | $713,250 | Alice Doesn't Live Here Anymore reached number one in its 14th week on the chart |
| 19 | May 7, 1975 | Alice Doesn't Live Here Anymore | $668,700 | |
| 20 | May 14, 1975 | The Happy Hooker | $475,000 | |
| 21 | May 21, 1975 | The Happy Hooker | $321,500 | |
| 22 | May 28, 1975 | Breakout | $1,701,796 | Breakout grossed $8.2 million in its first six days nationally |
| 23 | June 4, 1975 | Breakout | $1,263,016 | Breakout grossed $12,711,224 in its first two weeks nationally |
| 24 | June 11, 1975 | Shampoo | $575,500 | Shampoo reached number one in its 17th week on the chart |
| 25 | June 18, 1975 | The Return of the Pink Panther | $889,200 | The Return of the Pink Panther reached number one in its fourth week on the chart |
| 26 | June 25, 1975 | Jaws | $2,590,531 | Jaws grossed $7,061,513 nationally from all markets in the weekend ended June 22, setting the opening weekend record |
| 27 | July 2, 1975 | Jaws | $4,317,542 | Jaws grossed $6,810,584 nationally from all markets in the weekend ended June 29 |
| 28 | July 9, 1975 | Jaws | $4,029,365 | Jaws grossed $6,443,138 nationally from all markets in the weekend ended July 6 |
| 29 | July 16, 1975 | Jaws | $3,818,556 | Jaws grossed $5,954,787 nationally from all markets in the weekend ended July 13 |
| 30 | July 23, 1975 | Jaws | $3,078,793 | Jaws grossed $5,229,811 nationally from all markets in the weekend ended July 20 |
| 31 | July 30, 1975 | Jaws | $2,687,163 | Jaws grossed $6,150,000 nationally from all markets in the weekend ended July 27 |
| 32 | August 6, 1975 | Jaws | $2,225,509 | |
| 33 | August 13, 1975 | Jaws | $2,260,793 | |
| 34 | August 20, 1975 | Jaws | $1,968,605 | |
| 35 | August 27, 1975 | Jaws | $1,913,651 | |
| 36 | September 3, 1975 | Jaws | $1,626,685 | |
| 37 | September 10, 1975 | Jaws | $1,422,753 | |
| 38 | September 17, 1975 | Jaws | $972,589 | |
| 39 | September 24, 1975 | Jaws | $729,993 | |
| 40 | October 1, 1975 | Love and Death | $588,300 | Love and Death reached number one in its 16th week on the chart |
| 41 | October 8, 1975 | The Master Gunfighter | $606,350 | |
| 42 | October 15, 1975 | Hard Times | $1,141,605 | |
| 43 | October 22, 1975 | Three Days of the Condor | $1,071,168 | Three Days of the Condor reached number one in its fourth week on the chart |
| 44 | October 29, 1975 | Three Days of the Condor | $963,633 | |
| 45 | November 5, 1975 | Three Days of the Condor | $847,609 | |
| 46 | November 12, 1975 | Let's Do It Again | $726,010 | Let's Do It Again reached number one in its fifth week on the chart |
| 47 | November 19, 1975 | Three Days of the Condor | $635,425 | Three Days of the Condor returned to number one in its eighth week on the chart |
| 48 | November 26, 1975 | Let's Do It Again | $938,044 | Let's Do It Again returned to number one in its seventh week on the chart |
| 49 | December 3, 1975 | Let's Do It Again | $1,154,700 | |
| 50 | December 10, 1975 | Let's Do It Again | $614,200 | |
| 51 | December 17, 1975 | Let's Do It Again | $391,300 | |
| 52 | December 24, 1975 | The Killer Elite | $849,000 | |
| 53 | December 31, 1975 | Dog Day Afternoon | $1,931,500 | Dog Day Afternoon reached number one in its 14th week on the chart |
