Len Dawson has the most career passing yards for the Chiefs, with 28,507 yards.

who is the all-time passing leader for the chiefs
DawsonGreenSmithKenneyMahomesDeBergLivingstonGrbacCasselBonoMontanaFullerDavidsonHuardBlackledgeKriegGannonThigpenAdamsCroyleBeathardQuinnWilson28.5k21.5k17.6k17.3k17.1k11.9k11.3k10.6k9.5k6.5k5.4k5.3k4.9k4.6k4.5k4.4k4.0k2.6k2.1k1.7k1.6k1.1k994
NAMEGPYDSCMPATTPCTAVGYDS/GTDTD%INTINT%SCKSCKYRATE
Len DawsonLen Dawson18328,5072,1153,69657.27.7155.82376.41784.81671,42383.2
Trent GreenTrent Green8821,4591,7202,77761.97.7243.91184.2853.11731,02787.3
Alex SmithAlex Smith7617,6081,5872,43665.17.2231.71024.2331.41921,02194.8
Bill KenneyBill Kenney10617,2771,3302,43054.77.1163.01054.3863.51951,48777.0
Patrick MahomesPatrick Mahomes5617,0921,3852,09966.08.1305.21396.6341.684547106.3
Steve DeBergSteve DeBerg5711,8739341,61657.87.3208.3674.1503.18570981.8
Mike LivingstonMike Livingston9111,2959121,75152.16.5124.1563.2834.71521,39263.3
Elvis GrbacElvis Grbac4910,6438971,54857.96.9217.2664.3473.08559080.6
Matt CasselMatt Cassel489,5498541,48957.46.4198.9594.0443.010964677.5
Steve BonoSteve Bono376,4895941,07555.36.0175.4373.4272.54331974.3
Joe MontanaJoe Montana255,42748079160.76.9217.1293.7162.03119385.0
Steve FullerSteve Fuller525,33346581756.96.5102.6222.7323.912085269.4
Cotton DavidsonCotton Davidson294,91933070946.56.9169.6324.5395.561.9
Damon HuardDamon Huard264,61240465761.57.0177.4243.7182.76139683.3
Todd BlackledgeTodd Blackledge404,51036474249.16.1112.8263.5324.36553362.0
Dave KriegDave Krieg284,35333560255.67.2155.5223.7152.57046180.4
Rich GannonRich Gannon273,99736563057.96.3148.0233.7111.74328381.7
Tyler ThigpenTyler Thigpen162,64923242654.56.2165.6184.2133.12717174.7
Tony AdamsTony Adams502,12616331951.16.742.592.8226.94132753.1
Brodie CroyleBrodie Croyle181,66918131956.75.292.782.592.82616867.8
Pete BeathardPete Beathard521,64911025443.36.531.783.1135.196854.4
Brady QuinnBrady Quinn101,14111219756.95.8114.121.084.12112360.1
Eddie WilsonEddie Wilson429947014050.07.123.742.932.173.9
Tyler PalkoTyler Palko88318414060.05.9103.921.475.0139360.7
Kyle OrtonKyle Orton4779599760.88.0194.811.022.11581.1
StatMuse has season-level data for passing yards going back to the 1932 season.