A family member passed away recently - what should I do with their passport?
You can return their passport for cancellation with a copy of their death certificate to:
Embassy of Ireland, SeoulLeema Bldg. 13F., 142, Jongro 1-gil,
Jongno-gu, Seoul,
Korea 110-755
T: (02) 721 7200 / F: (02) 774 6458
Or
Customer Care,Passport Office,Freepost PO Box 9718,
Balbriggan,
County Dublin.