Addam \a(d)-dam\ as a boy's name is a variant of Adam (Hebrew), and the meaning of Addam is "earth".

The baby name Addam sounds like Adham and Addem. Other similar baby names are Addams, Adal, Adom, Adim, Adhamh, Adem, Addy, Addis, Addie, Adao, Adan, Adams, Adamo, Adar, Adlai, Adnah, Adya, Aidan, Aydan, Aram, Arram and Azam.