1966 in Wales

Incumbents

July 14 - In a by-election at Carmarthen, caused by the death of Megan Lloyd George, Gwynfor Evans wins Plaid Cymru's first Parliamentary seat.
September 8 - The Severn Bridge is opened.
The M4 motorway Port Talbot by-pass is opened.
The Afan Lido swimming pool in Port Talbot is opened by Welsh TV announcer Iris Jones.
October 21 - After heavy rain, a coal tip at Aberfan collapsed onto the village's primary school, killing 116 children and 28 adults.

British Press Awards - Special Award for Journalism - David Rhys Davies, Merthyr Express

Richard Burton stars in Who's Afraid of Virginia Woolf? alongside his wife Elizabeth Taylor. The performance wins him a BAFTA Best Actor award.

Hywel Bennett makes an impact in his first major TV role in Where the Buffalo Roam, a Wednesday Play.

Athletics - Lynn Davies becomes the first person to hold the European, Commonwealth and Olympic long jump titles simultaneously.
Football - Ivor Allchurch plays his final game for Wales, against Chile.
Rugby union - Phil Bennett makes his first appearance for Llanelli.
Tennis - Future rugby star J.P.R. Williams wins the junior championship at Wimbledon.
Welsh Sports Personality of the Year - Lynn Davies

May 14 - Megan Lloyd George, politician
November 19 - David Nathan, journalist
date unknown - Wilfred Mitford Davies, illustrator
date unknown - Simon Bartholomew Jones, minister and poet
date unknown - Elizabeth Watkin Jones, children's author
date unknown - Gordon Macdonald, 1st Baron Macdonald of Gwaenysgor, politician