| Milwaukee Lutheran High School | |
|---|---|
| Location | |
 | |
| , United States | |
| Coordinates | 43°05′46.1″N 88°02′02.4″W / 43.096139°N 88.034000°W |
| Information | |
| Type | Private secondary Co-ed |
| Religious affiliation(s) | Lutheran Church–Missouri Synod |
| Established | 1903 |
| Oversight | Lutheran High School Association of Greater Milwaukee |
| Principal | Adam Kirsch |
| Grades | 9–12 |
| Enrollment | ~800 |
| Color(s) | Cardinal Red, White |
| Athletics conference | Woodland Conference |
| Mascot | Red Knight |
| Accreditation | North Central Association |
| Website | www |
Milwaukee Lutheran High School (MLHS) is a secondary school located in Milwaukee, in the U.S. state of Wisconsin. The school was originally known as Lutheran High School (LHS). LHS was established in 1903, making Milwaukee Lutheran the oldest Lutheran high school in the United States. In the 1950s, doctrinal differences between the two synods operating the school resulted in each church body forming its own school.
MLHS is owned and operated by forty-six Lutheran Church–Missouri Synod (LCMS) congregations, the Lutheran High School Association of Greater Milwaukee (LHSAGM), and accredited by the North Central Association of Colleges and Schools. Milwaukee Lutheran has twice been recognized as a National Exemplary School (Blue Ribbon School) by the U.S. Department of Education. In 1995, the LCMS honored Milwaukee Lutheran as a "Recognized School of Excellence".