Julius Hirsch (7 April 1892 – declared dead 8 May 1945) was a German international footballer. A Jew, he was executed at Auschwitz concentration camp during the Holocaust. He helped the Karlsruher FV win the 1910 German football championship, and also played for the Germany national team, including at the 1912 Summer Olympics. He then joined SpVgg Fürth, with whom he won the 1914 German football championship.

Hirsch was born in Achern, Germany (and later lived in Karlsruhe), was Jewish, and was the seventh child of a Jewish merchant. He joined Karlsruher FV at the age of ten.

Together with Fritz Förderer and Gottfried Fuchs, Hirsch formed an attacking trio. Nicknamed "Juller", he was a dynamic midfielder and striker best known for his attacking style, his hard shot, and powerful left foot. He helped Karlsruher FV win the 1910 German football championship.

After joining SpVgg Fürth in 1913, he won the 1914 German football championship with them the following year.

Hirsch was the first Jewish player to represent the Germany national team, which he joined at 18 years of age in 1911. He played in a number of matches for Germany, including at the 1912 Olympic Games in Stockholm, Sweden. Hirsch scored four goals for Germany against the Netherlands in 1912, becoming the first German to score four goals in a single match.

Hirsch enlisted in and served for four years in the German Army in World War I, and was decorated with the Iron Cross. His brother Leopold was killed in action in June 1918, also fighting for the German Army.

He returned to KFV after World War I, and retired in 1925. However, he remained with the club as a youth coach.

Reading in a newspaper on 10 April 1933 that all Southern German clubs would ban Jewish members, Hirsch left KFV by his own choice after over 30 years as a member. In a letter to his club he requested that it should not be forgotten that many Jews had given their life blood for the German nation and believed themselves to be true patriots, as shown by their deeds and words.