Y102 may refer to:
WHHY-FM, a radio station nicknamed "Y102" in Montgomery, Alabama, U.S. WRFY-FM, a radio station nicknamed "Y102" in Reading, Pennsylvania, U.S. KRNY, a radio station nicknamed "Y102" in Kearney, Nebraska, U.S. KYYT, a radio station nicknamed "Y102" in Goldendale, Washington, U.S. WYBR, a radio station nicknamed "Y102" in Big Rapids, Michigan, U.S. WBWL-FM, a radio station formerly nicknamed "Y102" in Lynn, Massachusetts, U.S. KKYR-FM, a radio station formerly nicknamed "Y102" in Texarkana, Texas, U.S. KZXY-FM, a radio station nicknamed "Y102" in Victorville, California, U.S.
Yttrium-102 (Y-102 or 102Y), an isotope of yttrium