Irving Park is an 'L' station on the CTA's Blue Line. The station is located in the median of the Kennedy Expressway in the Irving Park neighborhood, though it draws its name from its cross street. Irving Park is one of two stations on the Blue Line that stops in an expressway median where the entrance is below the platform; Rosemont is the other, specifically beneath the westbound lane of the Kennedy Expressway. The station opened in 1970 as a part of the Kennedy extension of the Milwaukee Elevated from Logan Square to Jefferson Park.

The Blue Line is a 26.93-mile-long (43.34 km) Chicago "L" line which extends through The Loop from O'Hare International Airport at the far northwest end of the city, through downtown via the Milwaukee–Dearborn subway and across the West Side to its southwest end at Forest Park, with a total of 33 stations. At about 27 miles, it is the longest line on the Chicago "L" system and second busiest, and one of the longest local subway/elevated lines in the world. It has an average of 64,978 passengers boarding each weekday in 2022.