How popular in Oliver?

Very.

Immensely

I think it’s the number one boy name

Very popular

Very

Very! X

I believe it’s in the top 5 in every English speaking country

Yeah it's quite popular, I know a few!

When I was teaching I had an Oliver and there were more in the littler classes, might check on baby name sites to see it’s ranking.

I don’t know anyone named Oliver, or and any kids names Oliver.