[Nant] Cyrnach (Topographic feature).
Grid Reference: SN 71365 00573. Parish: Ynys-y-mond, Glamorgan
When recorded: 1699. Primary Source: Parochialia 3. Secondary Source: none

Blaen-Cyrnog (Settlement).
Grid Reference: SN 90500 39885. Parish: Llandeilo'r-Fan, Brecknockshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Bryn cyrney Homestead (Field).
Grid Reference: SN 42200 17743. Parish: Llandyfaelog, Carmarthenshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae bach and cae'r cyrneddog isa (Field).
Grid Reference: SH 58699 28639. Parish: Llanfair, Merionethshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae cyrnddor (Field).
Grid Reference: SH 96604 40346. Parish: Llanfor, Merionethshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae cyrneddog ucha (Field).
Grid Reference: SH 58749 28702. Parish: Llanfair, Merionethshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cae pencyrnyry (Field).
Grid Reference: SN 66566 24352. Parish: Llangadog, Carmarthenshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin

Cefn-Cyrnog (Unclassified).
Grid Reference: SN 90074 38061. Parish: Llandeilo'r-Fan, Brecknockshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Coed Nant Cyrniog (Unclassified).
Grid Reference: SH 87668 13074. Parish: Mallwyd, Merionethshire
When recorded: 1898-1908. Primary Source: OS 2nd Edition Maps. Secondary Source: GB1900 website

Cott & field on Cyrne (Field).
Grid Reference: SN 74520 74635. Parish: Upper Llanfihangel-y-Creuddyn, Cardiganshire
When recorded: 1841. Primary Source: none. Secondary Source: Cynefin