KMJ

KMJ may refer to:


 * KMJ (AM), a radio station (580 AM) licensed to serve Fresno, California, United States
 * KMJ-FM, a radio station (105.9 FM) licensed to serve Fresno, California
 * KSEE, formerly KMJ-TV (1953–1981), Fresno, California
 * Kumamoto Airport IATA code