Arnout \a-rnout, ar-nout\ as a boy's name is a variant of Arnold (Old French, Old German), and the meaning of Arnout is "eagle ruler".

The baby name Arnout sounds like Arnott, Arnot and Arnoud. Other similar baby names are Arnou, Adnot, Arnaud, Arnault, Arnett, Arnet, Arnat, Arno, Arnowe, Arnow, Arnoe, Arndt, Arnau and Arnon.