Antelmo is an uncommon given name of Italian origin, derived from the Germanic element "anthhelm" which means 'noble helmet'. It was popular among early German nobility and is considered to be a variation of Ansgar or Anselm. The name Antelmo is often associated with Saint Antelmo, a 12th-century French monk who founded the monastery of St. Martin in France. In Italy, the name has been used historically but is not widely prevalent today. It is more commonly found among the elderly population or those with Italian heritage.
The name Antelmo experienced some popularity in the late 80s and early 90s with peaks in 1994 and 1996 before declining and then briefly rising again in recent years. Overall, there have been a total of 56 births recorded for this name since 1986.