Greatest
A rare variant of Maximilian, which derives from the Roman family name Maximilianus. It ultimately stems from the Latin word 'maximus', meaning greatest, and was historically associated with Saint Maximilian of Celeia.
Less common today
Maxemiliano isn't in the latest US Top 1000. It last peaked at #3,227 in 2015.
US births per 5-year period, 1990βpresent (SSA data).