Cy - Cymraeg / Welsh
Sa - Saesneg / English
Ma - Mathemateg / Mathematics
Gw - Gwyddoniaeth / Science
Bg - Bioleg / Biology
Fg - Ffiseg / Physics
Cg - Cemeg / Chemistry
Ha - Hanes / History
Da- Daearyddiaeth / Geography
Ac - Astudiaethau Crefyddol / Religious Studies
Sb - Sbaeneg / Spanish
Dr - Drama / Drama
Cr - Cerdd / Music
Cl - Celf / Art
IG - Iechyd a Lles / Health and Wellbeing
Ag- Addysg Gorfforol / Physical Education
Ch - Chwaraeon / Sport
Co - Cofrestru / Registration
Tg - TGCh a Chyfrifiaduron / ICT and Computing
Bw - Technoleg Bwyd / Food Technology
Dt - Dylunio a Thechnoleg / Design Technology

