San Narciso (Spanish for "Saint Narcissus") is the name of two places in the Philippines:
San Narciso, Quezon San Narciso, Zambales
In other uses San Narciso, Belize San Narciso, a fictional Californian city in Thomas Pynchon's The Crying of Lot 49 1867 San Narciso Hurricane, the costliest and deadliest storm of the 1867 Atlantic hurricane season