In the run-up to the 2021 Senedd election, various organisations carried out opinion polling to gauge voting intentions.
Most of the pollsters listed are members of the British Polling Council (BPC) and abide by its disclosure rules.
The chart below depicts constituency vote opinion polls conducted for the Senedd election.
The opinion polls below are gauge voting intentions for the 20 regional list seats elected through the additional member system.
The following polls asked about voters' opinions on Mark Drakeford, leader of Welsh Labour and First Minister of Wales.
The following polls asked about voters' opinions on Jane Dodds, the leader of the Welsh Liberal Democrats.
The following polls asked about voters' opinions on Boris Johnson, leader of the Conservative Party and prime minister of the United Kingdom.