Victory
Nicasio is the Spanish and Italian form of the Greek name Nikasios, derived from 'nike' meaning victory. It shares the same root as the more common Nicholas and was historically associated with several early Christian saints.
Less common today
Nicasio isn't in the latest US Top 1000. It last peaked at #4,936 in 1998.
Filipino revolutionary leader
Leader of the Lanao rebellion in the Philippines
4th-century Bishop of Rheims and martyr
US births per 5-year period, 1990βpresent (SSA data).