Wales will face New Zealand in front of a capacity 74,500 crowd at the Millennium Stadium on November 27 after tickets for the Invesco Perpetual Series closing international match sold out.
Tickets still remain available for the opening game against Australia this Saturday (KO 2.30), South Africa on November 13 (KO 2.30) and Fiji on November 19 (KO 7.30).
The WRU Group Sales and Marketing Manager, Craig Maxwell, said: "We are delighted at the response from supporters for the New Zealand match which is great news for the Millennium Stadium.
"Interest in all four of our games has been growing steadily and this week there has been huge media focus on the series. We have a great series of matches in prospect here in Cardiff and we know the interest is going to continue to build in the weeks ahead as well.
"We were always confident it was only a matter of time before the New Zealand game sold out and the fans have proved us right.
"There are still some tickets available for the other matches so supporters will still have a chance to watch Wales play.
"The tickets for the Australia game are now selling very well but supporters will still be able to come along on Saturday and buy tickets from our outlet in the Cardiff Arms cafe and store on Westgate Street just outside the Stadium at entrance 3."
You can get tickets for Wales' Autumn internationals by calling: 08442 777888 or call in at the Cardiff Arms Store, 8 Westgate Street, Cardiff or visit www.wru.co.uk/tickets
The WRU's Women and Girls legacy events - #TRY OUR GAME have proved popular this week with current players and newcomers to the game learning new skills and picking up tips from national squad players.
We caught up with Shona and Ellie from the Wales women team ahead of the start of the Women's Rugby World Cup in Paris next month at a recent women's training session to encourage and promote more women and girls to try their hand at rugby. #tryourgame
The Women's Rugby World Cup warm-up clash between Wales and USA proved bittersweet for centre Elen Evans. Despite being one of the star performers on the day on her 50th Test appearance, USA edged home 10-7 at Cross Keys.
Wales completed their Junior World Championship campaign with a victory over Samoa. Team manager Mark Taylor and No 8 James Benjamin reflect on a tournament which saw Wales win three games and lose two.
Wales U20 players Angus O'Brien, Nicky Thomas and coach Richard Hodges are determined to finish their Junior World Championship with a flourish when they tackle the big hitting Samoans tomorrow in Auckland.