The 2007 National Assembly for Wales election was held on Thursday 3 May 2007 to elect members to the National Assembly for Wales. It was the third general election. On the same day local elections in England and Scotland, as well as the Scottish Parliament election took place. This election was preceded by the previous Assembly election in 2003.

The Senedd, officially known as the Welsh Parliament in English and Senedd Cymru in Welsh, is the devolved, unicameral legislature of Wales. A democratically elected body, it makes laws for Wales, agrees to certain taxes, and scrutinises the Welsh Government. It is a bilingual institution, with both Welsh and English being the official languages of its business. From its creation in May 1999 until May 2020, the Senedd was officially known as the National Assembly for Wales and often simply called the Welsh Assembly.