Darren

In 2018, 45 is the most common age for an American (U.S.) Darren who is registered male with the Social Security Administration. It is the 517th most common male first name for living U.S. citizens.

From what I've seen, the name Darren seems to be very popular in the UK. (I'm American, for the record.) My uncle spells his name "Darrin," and I know a woman named Daryn Ann; I think she was named after her father, Darren.