KJYO (102.7 FM), known as "KJ103", is a top 40 (CHR) radio station serving the Oklahoma City area owned by iHeartMedia.

Its transmitter is in Northeast Oklahoma City, and studios were located in the 50 Penn Place building on the Northwest side, in early 2022 iHeartMedia Oklahoma City moved KJYO along with sister stations KGHM, KTOK, KTST, KXXY-FM, KREF-FM, to new state of the art studios located at 6525 N Meridian Ave further up the road on the Northwest side just a few miles west from their former studio home in the 50 Penn Place building.

The station began broadcasting April 8, 1961, as KJEM-FM, sister to KJEM (800 AM), and adopted an adult standards format.

The station adopted the handle "K-Joy" (The Joy of Oklahoma) and an easy listening format in 1981 and changed its call letters to KJYO.

• Bob Campbell • Brad B • Brian (Ponch) Kelly (Now Mornings at KZPT/Kansas City) • Curt Spain (ABC Radio) • Boomer Barbosa (Now owner of KBGE FM, 94-9 The Bridge in Coastal Oregon) • Dan Tooker • Danny Douglas • Domino (Former KIIS/Los Angeles, KHKS/Dallas) • Dylan Sprague (Now SVPP Programming, iHeartMedia Boston) • Aric Chase (later Executive Producer at WABC/New York City) • Frito • Greg Fisher (later known as Greg Knight at KKRW/Houston) • Jay "JR" Runyon • JD Stewart • Jimmy Barreda • Joel Folger (Deceased) • John Zondlo • Josh Knauer • Kramer • Mark Shannon (Deceased) • Maverick (Now at The Mix Group) • Michael Blake • Mike McCoy • Ric Reece • Ronnie Rocket • Scholar Brad (Now afternoons at J-103 Chattanooga) • Stacy Barton • Steve Summers • Teresa Maxwell (Now Mornings at KMXV/Kansas City) • Tod Tucker (Deceased) • Woody Wood