The following is a list of most watched United States television broadcasts of 1997.
| Week of | Title | Network | Viewers (in millions) | Ref. |
|---|---|---|---|---|
| January 6 | Seinfeld | NBC | 34.5 | [ citation needed ] |
| January 13 | 37.3 | [ citation needed ] | ||
| January 20 | Super Bowl XXXI | Fox | 87.9 | [ citation needed ] |
| January 27 | ER | NBC | 33.6 | [ citation needed ] |
| February 3 | Seinfeld | 33.6 | [ citation needed ] | |
| February 10 | ER | 35.9 | [ citation needed ] | |
| February 17 | Seinfeld | 33.8 | [ citation needed ] | |
| February 24 | 28.4 | [ citation needed ] | ||
| March 3 | Unknown | |||
| March 10 | Seinfeld | NBC | 31.3 | [ citation needed ] |
| March 17 | 26.8 | [ citation needed ] | ||
| March 24 | 69th Academy Awards | ABC | 40.1 | [ citation needed ] |
| March 31 | NCAA Championship | CBS | 28.4 | [ citation needed ] |
| April 7 | Unknown | |||
| April 14 | ER | NBC | 32.1 | [ citation needed ] |
| April 21 | 33.6 | [ citation needed ] | ||
| April 28 | Ellen | ABC | 36.2 | [ citation needed ] |
| May 5 | ER | NBC | 34.8 | [ citation needed ] |
| May 12 | 34.9 | [ citation needed ] | ||
| May 19 | The Odyssey , Part 2 | 26.3 | [ citation needed ] | |
| May 26 | NBA Finals (Game 1) | 24.7 | [ citation needed ] | |
| June 2 | NBA Finals (Game 4) | 26.4 | [ citation needed ] | |
| June 9 | NBA Finals (Game 5) | 30.3 | [ citation needed ] | |
| June 16 | Seinfeld | 19.5 | [ citation needed ] | |
| June 23 | 20.1 | [ citation needed ] | ||
| June 30 | 60 Minutes | CBS | 14.8 | [ citation needed ] |
| July 7 | Seinfeld | NBC | 17.0 | [ citation needed ] |
| July 14 | 16.4 | [ citation needed ] | ||
| July 21 | 19.1 | [ citation needed ] | ||
| July 28 | 17.2 | [ citation needed ] | ||
| August 4 | 18.5 | [ citation needed ] | ||
| August 11 | 17.9 | [ citation needed ] | ||
| August 18 | 19.2 | [ citation needed ] | ||
| August 25 | 19.7 | [ citation needed ] | ||
| September 1 | Monday Night Football | ABC | 21.6 | [ citation needed ] |
| September 8 | Seinfeld | NBC | 22.6 | [ citation needed ] |
| September 15 | Monday Night Football | ABC | 23.4 | [ citation needed ] |
| 1997–98 television season begins | ||||
| September 22 | ER | NBC | 42.7 | [ citation needed ] |
| September 29 | 32.6 | [ citation needed ] | ||
| October 6 | 32.1 | [ citation needed ] | ||
| October 13 | 32.8 | [ citation needed ] | ||
| October 20 | World Series (Game 7) | 38.0 | [ citation needed ] | |
| October 27 | Cinderella | ABC | 34.3 | [ citation needed ] |
| November 3 | ER | NBC | 32.0 | [ citation needed ] |
| November 10 | 34.7 | [ citation needed ] | ||
| November 17 | What the Deaf Man Heard | CBS | 36.9 | [ citation needed ] |
| November 24 | CBS Sunday Movie | 27.6 | [ citation needed ] | |
| December 1 | Touched by an Angel | 24.4 | [ citation needed ] | |
| December 8 | ER | NBC | 31.7 | [ citation needed ] |
| December 15 | 32.5 | [ citation needed ] | ||
| December 22 | Monday Night Football | ABC | 22.0 | [ citation needed ] |
| December 28 | Rose Bowl post-game show | 27.8 | [ citation needed ] | |