Y101 may refer to one of the following radio stations:
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KRRY, of Quincy, Illinois
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KWYE, of Fresno, California
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WHYA, of Cape Cod, Massachusetts
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WYOY, of Jackson, Mississippi
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CKBY-FM, of Smiths Falls and Ottawa, Ontario, identified as Y101 from 2004–2013
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DYIO, of Cebu City, Philippines
Y101 may also refer to:
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Yttrium-101 (Y-101 or 101Y), an isotope of yttrium
