Rex Mundi High School was a Catholic high school in Evansville, Indiana. Its name comes from the Latin King of the World. The premises are now used for Ivy Tech Community College's Evansville Campus.
It opened in the fall of 1958 in a rapidly expanding area close to what was then the north city limits of Evansville. The Country Club Meadows and Country Club Manor subdivisions opened in the early to mid 1950s in the immediate vicinity of the Rex Mundi site. At the time of the opening of the high school, the Diocese of Evansville maintained a strict policy requiring those registered in Catholic parishes to send their children to diocesan schools. While it required an entrance exam for admissions (and exempted those who failed from the required attendance in the Catholic school system), Rex Mundi benefited from the diocesan attendance policy and soon was full to overflowing.
The school was closed by the diocese in March 1972. Famous alumni include former All-American quarterback Bob Griese.