Can I use a similar name?

[Tabby12]

Jackson and Jack as cousins? There will be a 8 year age gap and live an hour away from each other, oh and different surnames.

It has very sentimental meaning to me

Yes I think that’s fine 👍

Personally there's no way I'd consider a name so similar (the same!) to such a close relative. Jack is a variation of John so you could use John or Seán.

I probably wouldn't, if they share a grandparent, that's confusing. Could Jack not be a middle name? It's so popular right now!

I think it's fine. Both my sister and brother named a son Thomas after our father. It has never been an issue

Would be absolutely fine in my family.

I wouldn't

Name issue | Mumsnet
I wouldn't, but that's because I'm not that keen on surnames as first names. I know quite a few Jacks so wouldn't use Jack either but it's not a family name.

I wouldn’t personally. I think if you ran it past Jackson’s parents and they were cool about it then it’s ok.

Go for it

Perfect fine.

That’s fine, I have 4 cousins called Tom 😂

Not a problem at all.
In my family there are cousins born the same year. One has the name Chris and the other has the name Christopher. They live in the same area. No problem.

Could you have it as a middle name instead as it is too close for my liking so David Jack/son Surname?