Arachne \a-rach-ne, ar(a)-chne\ as a girl's name is of Greek origin. Greek mythology: a young maiden who challenged the goddess Athena to a weaving contest and was turned into a spider for offending her. Spiders are also known as "arachnids".
Arachne has 2 variant forms: Arakne and Archna.
Baby names that sound like Arachne are Argene and Arcangel.