Morey Stanley Mosk (September 4, 1912 – June 19, 2001) was an Associate Justice of the California Supreme Court for 37 years (1964–2001), and holds the record for the longest-serving justice on that court.
Before sitting on the Supreme Court, he served as Attorney General of California and as a trial court judge, among other governmental positions.
Mosk was the last Justice of the California Supreme Court to have served in non-judicial elected office before his appointment to the bench.
The Los Angeles County Courthouse is named after him.