- Joa
- Joachim
- Joan
- Job
- Jobarteh
- Jobda
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- Jober
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- Jocic
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- Jodlowski
- Joe
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- Johannsson
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- Johar
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- Johl
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- John
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- Johnn
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- Johnson
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- Johnstad
- Johnston
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- Jok
- Jokar
- Jokela
- Jokic
- Jokinen
- Jokumsen
- Joldersma
- Jolin
- Jolly
- Jomaa
- Jon
- Jonaityte
- Jonas
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- Jonasen
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- Jonasson
- Jondahl
- Jonek
- Jones
- Jong
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- Jongejan
- Jongo
- Jongsma
- Joniec
- Jonker
- Jonna
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- Jonsen
- Jonson
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- Jonuzi
- Joof
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- Jordal
- Jordan
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- Jose
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- Joy
- Joya
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- Jozefowicz
- Jozsef
- Jozwiak