The Klein International String Competition is a prestigious annual event for highly advanced young string players, presented by the California Music Center in the San Francisco Bay Area. Named in honor of violinist and teacher Edgar M. Klein, the competition is open to violinists, violists, cellists, and bassists of all nationalities who are typically in their late teens to early twenties. Contestants perform demanding solo repertoire in multiple rounds before an international jury, competing for cash prizes, performance opportunities, and professional recognition. While the Klein Competition is not designed specifically for high school students, exceptionally advanced high school–age musicians sometimes apply if they meet the artistic standard and age requirements stated for that year. Participants gain experience performing at a very high level, receive feedback from distinguished judges, and connect with a community of serious young artists and mentors. The event is generally held in person in California, with preliminary video rounds and detailed application requirements published annually on the competition’s official website.