Bishops of Rome and the Popes: 1 pope
Agatho (a.k.a. Agathon)   678-681  
Characters in Greek Mythology: 1 character
Agathon   (m)  
Coptic Popes and Patriarchs of Alexandria: 1 pope
Agathon I   662-680  
Notable Politicians and Statespeople: 1 politician
Matei-Agathon Dan   1949-  
Olympic Medalists: 1 bronze
(bronze) Aat de Roos (a.k.a. Agathon)   1936   field hockey  
Saints: 1 saint
Saint Agatho (a.k.a. Agathon)   ?-681