O dan Ddeddf Plant (Diddymu Amddiffyniad Cosb Resymol) (Cymru) 2020, mae pob math o gosbi corfforol, fel smacio, taro, slapio ac ysgwyd, yn anghyfreithlon. Bydd y gyfraith newydd yn berthnasol i bawb yng Nghymru, gan gynnwys ymwelwyr, o 21 Mawrth 2022.
Under the Children (Abolition of Defence of Reasonable Punishment) (Wales) Act 2020 all types of physical punishment, such as smacking, hitting, slapping and shaking, are illegal. The new law will apply to everybody in Wales, including visitors, from 21 March 2022.