Most Career Passing Yards by a Kansas City Chiefs Player

The Kansas City Chiefs are a quarterback-driven franchise with a timeline that runs through the golden age of the AFL to the Mahomes era of modern dominance. Len Dawson brought them their first Super Bowl. Patrick Mahomes has brought two more — and rewritten every passing record in sight. Whether it was Trent Green slinging it in the 2000s or Alex Smith steadying the ship, Chiefs QBs have made their mark on the league. Here’s a closer look at the top 10 career passing yard leaders in Chiefs history.

TOP 10 LIST

10. Steve Bono – 6,489 Yards
Bono helped guide the team during the Marty Schottenheimer era and earned a Pro Bowl spot in 1995 with efficient, winning football.

9. Matt Cassel – 9,549 Yards
Cassel showed flashes of promise — especially in 2010 — but was ultimately inconsistent during his time in Kansas City.

8. Elvis Grbac – 10,643 Yards
Armed with a strong arm and aggressive tendencies, Grbac gave the Chiefs a much-needed passing spark in the late ’90s.

7. Mike Livingston – 11,295 Yards
Livingston spent over a decade in KC, filling in admirably behind Dawson and later taking over full-time under center.

6. Steve DeBerg – 11,873 Yards
A gritty veteran known for his toughness, DeBerg stabilized the offense through multiple playoff runs.

5. Bill Kenney – 17,277 Yards
Kenney quietly led the NFL in passing yards in 1983 and kept the offense alive during a tough decade for the franchise.

4. Alex Smith – 17,608 Yards
Smith helped shift the Chiefs from average to annual contenders, playing a key role in the team’s 2010s success and mentoring Mahomes.

3. Trent Green – 21,459 Yards
Green ran one of the most explosive offenses in Chiefs history, leading to back-to-back 4,000-yard seasons in the early 2000s.

2. Len Dawson – 28,507 Yards
The face of the franchise for decades, Dawson’s legacy includes a Super Bowl title, a Hall of Fame bust, and unmatched consistency.

1. Patrick Mahomes – 32,352 Yards
Mahomes is already the most prolific passer in team history, and he’s just getting started. Two MVPs, multiple 5,000-yard seasons, and clutch postseason magic define the league’s most electric quarterback.

Ranking the 10 best career passing yard leaders in Kansas City Chiefs history

Top 50 Career Passing Performances in Chiefs History

This list showcases every quarterback to surpass 50 career passing yards in a Chiefs uniform — from all-time icons to one-game wonders.

Patrick Mahomes has transformed the record books and the standard for quarterback play in Kansas City. While Len Dawson’s era brought the first wave of greatness, Mahomes is pushing the franchise to unprecedented heights. The list is full of fascinating names — Alex Smith’s leadership, Trent Green’s big numbers, and even Joe Montana’s brief run — each leaving their mark on this quarterback-rich franchise.

FAQ Section

Who has the most career passing yards for the Chiefs?
Patrick Mahomes leads with 32,352 yards and counting.

Is Len Dawson still in the top three?
Yes — he ranks second with 28,507 yards and is still regarded as a franchise legend.

Has Mahomes already surpassed Dawson?
He has — and is expected to widen the gap significantly with each passing season.

Which other QBs had memorable stints with KC?
Trent Green, Alex Smith, and even Joe Montana all brought playoff runs and strong production to the table.

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