- J Alfred Laird Elementary School
- J Clarke Richardson Collegiate
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- J J Ebers Award
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- J Preston Limited
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- J sort
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- J-21 Jastreb
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- J. Henry Meyer Memorial Library
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- J. Iverson Riddle Developmental Center
- J. J. Kelly High School
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- J. Mack Robinson College of Business
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- J. R. Ackerley Prize for Autobiography
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- J. Reuben Clark Law Society
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- J. W. Sexsmith Elementary School
- J. Willard Marriott Library
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- J.D. (Scrubs)
- J.D. Edwards Honors Program
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- J.M. Hanks High School (El Paso, Texas)
- J.M. Tate High School
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- J.P. Bickell Memorial Award
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- JMagallanes
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- JP
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- JPEG
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- JPF
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- JPI
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- JSS Banashankari Arts, Commerce & S.K.Gubbi Science College
- JSSATE
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- JTB Corporation
- JTC
- JTD engine
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- JUB
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- JUnit
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- JY
- JY-14 Radar
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- JZR Trikes
