Ignacy Ludwik Jeż (31 July 1914, Radomyśl Wielki – 16 October 2007) was a Polish Catholic prelate who served as the Bishop of Koszalin-Kołobrzeg.

After the camp was liberated by the American forces in 1945, Jeż returned to priesthood, and from 1946 until 1960 he was the director of a Catholic Gymnasium in Katowice.

Jeż died on 16 October 2007 in Rome, Italy, the day before the announcement that Pope Benedict XVI had planned to make him a cardinal (in the consistory of 24 November 2007).

The following year the German Bundestag awarded him the Preis für Zivilcourage, "for his courageous behaviour as a young priest during the Nazi occupation of Poland".

Jeż was made an honorary citizen of several cities and municipalities: Radomyśl Wielki (since 2004), Koszalin (since 1994), Slupsk (since 2006), Połczyn Zdrój (since 2006), Katowice (2007) and Kolobrzeg (since 2008).