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.

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

Other titles, published by the company were: In the late 1930s, IKC employed some 1,000 people.