National Assembly for Wales election, 1999

The first National Assembly for Wales elections were held on 6 May 1999. The overall turnout of voters was 46.3%. Although Welsh Labour were the biggest party, they did not gain enough seats to form a majority government and instead entered into coalition with the Liberal Democrats. The election was marked by the historically high level of support for Plaid Cymru, who won their highest share of the vote in any Wales-wide election and, as of 2016, their highest number of seats in an Assembly election to date. The party won considerable support in traditionally safe Labour areas such as the South Wales Valleys, winning Rhondda and Islwyn and narrowly failing to win a number of other seats.

For lists of constituencies and regions, see National Assembly for Wales constituencies and electoral regions.