Here are some statistics concerning the surname Duyn and a list of some of the the most common names in South Africa that contain it.
Frequency: 0.0002%
Approximate number of South Africans that have this surname: 104 MD5 Code: e4599edca173b3675e2fd41ece0f7bf7 SHA1 Code: 9d4a3013ae653bcd9e35ad53a29dbfa160c9a11c