Jongejan and Jongejans are Dutch surnames meaning "young John('s)". The name originated to distinguish a younger family member "Jan" from a senior one, like a father or an older brother. The latter was not uncommon; Dutch convention was to name the two oldest sons after each grandfather, who may both have been called "Jan". The common surname De Jong has a similar origin.Jongejan at the Database of Surnames in The Netherlands. Notable people with these surnames include:
Ben Jongejan (born 1985), Dutch speed skater Daphne Jongejans (born 1965), Dutch springboard diver, sister of Edwin Edwin Jongejans (born 1966), Dutch springboard diver, brother of Daphne Ferenc Jongejan (born 1978), Dutch baseball player George Jongejans (1917–2016), American singer, actor and voice artist known as "George Gaynes"
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