Andreas \a-nd-reas, an-dreas\ as a boy's name (also used as girl's name Andreas), is of Greek origin, and the meaning of Andreas is "man". The original New Testament Greek form of Andrew. The manliness this name refers to is about the duties of a male in the patriarchal society of ancient Greece. The first duty of a man was to protect his home, and this name is sometimes translated as "warrior".

For more information, see also related names Andres and Andre.

Baby names that sound like Andreas are Andreus, Andras, Andrews, Andrea and Aindreas. Other similar baby names are Anders, Andrius, Andris, Andrey, Andrej, Andrei, Andrae, Andros, Andries, Andrian, Andrezj, Andrewes, Andresj and Aindrea.