Jakob Jonilowicz[1] Hebrew: יעקב יונילוביץ (1908–1975) was an Israeli cinematographer.

In 1936 he was the director of photography for the film Yidl Mitn Fidl, Yiddle with his Fiddle.

After the 1939 German invasion of Poland, Jonilowicz returned to his hometown to help his family.

After he survived the Holocaust, he was director of photography for Long Is the Road, a German film made in 1947 and 1948.

An article published in Vilna, 1936, in the Der Wilner Ekspres (Der Wilner Express) detailed Jakob Jonilowicz' childhood and life before World War II.