As Ahwel said, "-wan" (-van) is actually a masculine suffix of Sanskrit origin; it's the equivalent of the feminine "-wati" (-vati). [noted -ed]See https://id.wikipedia.org/wiki/-wan (in Indonesian)
Pronounced "se-tee-AH-wahn". [noted -ed]"Setia" does mean "loyal" or "faithful". "-wan" is a suffix that is often attached to male Indonesian names.Hendra Setiawan is an Indonesian badminton player. Erik Setiawan is an Indonesian football (soccer player). This is a really common name.