J
- J. Curtis McKay, American legislator
- Jack McKay, fictional character from Beverly Hills, 90210
- James McKay (disambiguation):
- James McKay (fur trader)
- James McKay (industrialist)
- James Mackay, 1st Earl of Inchcape of Strathnaver, a British colonial administrator and chairman of the Peninsular & Oriental Steamship Co.
- James Iver McKay
- Jason McKay
- Jim McKay (1921–2008), American sportscaster
- Jim McKay (director)
- Jodi McKay
- John MacKay (disambiguation) (several people)
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