The National Assembly for Wales (Official Languages) Act 2012 (Welsh: Deddf Cynulliad Cenedlaethol Cymru (Ieithoedd Swyddogol) 2012) was an act of the then National Assembly for Wales placing a statutory duty on the National Assembly for Wales for the provision of bilingual services.

The National Assembly for Wales (Official Languages) Act 2012 was an act of the National Assembly for Wales that was given royal assent on 12 November 2012.

It is significant in that it is the first Act passed in Wales to become law in over 600 years.

[4][5] It was not the first bill passed by the National Assembly for Wales, which was the bill for the Local Government Byelaws (Wales) Act 2012,[6] but was the first to receive royal assent and so become law.

The bill was passed by the National Assembly for Wales on 3 October 2012,[7] but then underwent a statutory period of intimation, so that lawyers could verify that it fell within the remit of the National Assembly for Wales.