"Variant of Antonius"
The name Twan is commonly a male name from the "Swedish" origin.
Twan is a Dutch masculine given name used as a short form of Antonius, the Latin name that also lies behind English Anthony. The same root produces other Dutch short forms such as Anton and Teun. It is a recorded given name in the Netherlands rather than an English invention.
Antonius means "Worth of praise, Priceless.".
The pronunciation of Twan is TWAHN.