List of most watched United States television broadcasts of 2003
# List of most watched United States television broadcasts of 2003

The following is a list of most watched United States television broadcasts of 2003.

## Most watched by week

Broadcast (primetime only) :

| Week of | Title | Network | Viewers (in millions) |
| - | - | - | - |
| January 6 | CSI: Crime Scene Investigation | CBS | 25.48 |
| January 13 | AFC Championship | CBS | 41.46 |
| January 20 | Super Bowl XXXVII | ABC | 88.64 |
| January 27 | CSI: Crime Scene Investigation | CBS | 27.48 |
| February 3 | 20/20 | ABC | 27.11 |
| February 10 | CSI: Crime Scene Investigation | CBS | 27.21 |
| February 17 | Joe Millionaire | Fox | 40.03 |
| February 24 | CSI: Crime Scene Investigation | CBS | 22.88 |
| March 3 | Survivor | CBS | 23.33 |
| March 10 | CSI: Crime Scene Investigation | CBS | 28.60 |
| March 17 | 75th Academy Awards | ABC | 33.04 |
| March 24 | American Idol (Tues) | Fox | 19.80 |
| March 31 | CSI: Crime Scene Investigation | CBS | 26.37 |
| April 7 | CSI: Crime Scene Investigation | CBS | 26.45 |
| April 14 | American Idol (Tues) | Fox | 19.98 |
| April 21 | CSI: Crime Scene Investigation | CBS | 25.22 |
| April 28 | CSI: Crime Scene Investigation | CBS | 22.67 |
| May 5 | CSI: Crime Scene Investigation | CBS | 25.10 |
| May 12 | Friends | NBC | 25.46 |
| May 19 | American Idol (Tues) | Fox | 38.06 |
| May 26 | CSI: Crime Scene Investigation | CBS | 13.34 |
| June 2 | Everybody Loves Raymond | CBS | 15.27 |
| June 9 | CSI: Crime Scene Investigation | CBS | 14.58 |
| June 16 | CSI: Crime Scene Investigation | CBS | 14.32 |
| June 23 | CSI: Crime Scene Investigation | CBS | 13.80 |
| June 30 | CSI: Miami | CBS | 12.07 |
| July 7 | For Love or Money | NBC | 12.90 |
| July 14 | 2003 MLB All-Star Game | Fox | 13.81 |
| July 21 | CSI: Crime Scene Investigation | CBS | 13.34 |
| July 28 | CSI: Crime Scene Investigation | CBS | 13.17 |
