The Welsh Language Measure was passed by the National Assembly for Wales on 7 December 2010, and received royal assent from Her Majesty the Queen on 9 February 2011.
Cafodd Mesur y Gymraeg (Cymru) 2011 ei basio gan Gynulliad Cenedlaethol Cymru ar 7 Rhagfyr 2010 a derbyniodd gydsyniad brenhinol gan Ei Mawrhydi ar 9 Chwefror 2011.