Baron Ádám Viczay de Loós was a Hungarian nobleman, member of the Baron Viczay de Loós family.
He had three younger sisters, including Éva, second wife of Baron Pál Esterházy.
Ádám was created Baron by Ferdinand III on 15 May 1645.
[1] Baron Ádám married twice: his first wife was Zsuzsanna Török de Telekes, the second one was Katalin Körtvélyessy.
János established the family wealth with the inheriting of the Hédervári estate.