Ilustrowany Kuryer Codzienny (Polish pronunciation: [ilustrɔˈvanɨ ˈkurjɛr t͡sɔˈd͡ʑɛnnɨ], Illustrated Daily Courier), abbreviated IKC or Ikac, was a Polish daily newspaper as well as a publishing house.

Founded in 1910 in Kraków by Marian Dąbrowski, under the Second Polish Republic IKC was the biggest publisher in the country, with its newspapers and magazines having a circulation of more than 400,000.

The company started with its flagship, the Ilustrowany Kuryer Codzienny daily, and over time more titles were added.

During World War I its circulation was 125,000 and it was limited to the area of Austrian Galicia.

In the 1920s, IKC grew, becoming Poland's most popular daily, read by some 1 million people.