What are the names of John children?

Please provide more context! Which John are you referring to?

For example:

* John Doe: We need more information about John Doe to know his children's names.

* John F. Kennedy: His children are Caroline Kennedy, John F. Kennedy Jr., Patrick Bouvier Kennedy, and Robert F. Kennedy Jr.

* John Lennon: His son is Julian Lennon, and he had a son Sean Lennon with Yoko Ono.

Let me know who you're talking about so I can answer your question!