2004 K League Championship is postseason championship playoff of 2004 K League. 1st stage winner, 2nd stage winner and overall top two teams are competing the championship. Semi-finals are played one leg, and final is played two legs.
Assistant referees: Kim Sun-Jin
Won Chang-Ho
Fourth official: Park Jong-Gyu
Assistant referees: Kim Ke-Soo
An Sang-Ki
Fourth official: Lee Jong-Kuk