From Hadria; dark one
Aydrian is a modern creative spelling of Adrian. It originates from the Latin name Hadrianus, referring to someone from the town of Hadria in northern Italy, which also gave its name to the Adriatic Sea.
Less common today
Aydrian isn't in the latest US Top 1000. It last peaked at #3,292 in 2014.
US births per 5-year period, 1990βpresent (SSA data).