2003 Pittsburgh Steelers season
The 2003 Pittsburgh Steelers season was the franchise's 71st season as a professional sports franchise and as a member of the National Football League.
Their season began with the team trying to improve on their 10–5–1 record from NFL season|2002] in which they lost to the Tennessee Titans in the divisional round of the playoffs.
With the team suffering through injuries as well as less reliance on the running game than normal, the Steelers stumbled to a 6–10 record, going the entire season without winning consecutive games. Since moving to Heinz Field in 2001 [Pittsburgh Steelers season|2001], this was the Steelers' first season with a losing record and their first season missing the playoffs. The team's record is tied with that of the 1999 season as the worst for a season under head coach Bill Cowher. This was the Steelers' only losing season from 2000 to 2025.
In his final season with the team, linebacker Jason Gildon became the franchise's career sack leader during a game against the Arizona Cardinals on November 9.
Since then, this represents the most recent losing season for the Steelers, as well as the only time they've lost to the Browns on Heinz Field in the regular season.
Offseason
Undrafted free agents
| Player | Position | College |
| Jason Armstead | Wide receiver | Ole Miss |
| Roy Attieh | Defensive Tackle | Kent State |
| Phil Braxton | Wide receiver | West Virginia |
| Nashville Dyer | Cornerback | Kent State |
| Jack Fadule | Tackle | Harvard |
| Rashad Faison | Safety | South Carolina |
| Casey Poppinga | Tight end | Utah State |
| Dan Rumishek | Defensive end | Michigan |
| Jonathan Ruffin | Kicker | Cincinnati |
| Leonard Scott | Wide receiver | Tennessee |