What is your middle name? Does it carry any special meaning/significance?

A lot of people traditionally have a first, middle and last name, that is, a Christian name, middle name and Surname. Is it just an English thing?
I won’t tell you mine, too many data harvesting types waiting out there to tack a little bit more of your life into their box.
I really feel that all this data flying around is no good for us. So, sorry, no middle wicket from me!