So Christopher is an interesting case because it's the longest common English first name at 11 characters. There are names that seem longer but aren't, like Max

So Christopher is an interesting case because it's the longest common English first name at 11 characters. There are names that seem longer but aren't, like Maximilian. My first son is named Christopher, and we realized right away that there is a 10 character first name limit in a ton of systems almost from day 1 - calling my insurance company, the automated system asked "Are you calling about... Christophe?"... in a French accent, which was hilarious.