Under the agreement, the Welsh-language broadcaster will air all five of Wales’ fixtures live in both the Guinness Men’s Six Nations and the U20 Six Nations tournaments.
Fans will also be able to enjoy extended highlights of every Wales match in the Guinness Women’s Six Nations, ensuring that the sport’s top international competitions remain accessible to Welsh-speaking audiences.
The announcement comes as S4C gears up to deliver live coverage of the upcoming November Quilter Nations Series, further strengthening its rugby portfolio.
Sue Butler, S4C’s Head of Sport, said: “As the home of Welsh sport, we’re delighted to have agreed this new partnership with Six Nations Rugby, strengthening our commitment to Welsh-language coverage of rugby at every level.
“Alongside our live coverage of the Quilter Nations Series, this agreement ensures that Welsh audiences can continue to enjoy world-class rugby, from the senior sides to the next generation of talent.”
Tom Harrison, Chief Executive Officer at Six Nations Rugby, added: “The Six Nations is one of the most loved annual occasions in the sporting calendar, and carries real cultural significance for fans in Wales, so we are proud to continue working with S4C to provide free-to-air Welsh language coverage of the Championship for the next four years.
“We are committed to driving the growth of the Women’s Six Nations, as well as our successful pathway competition; the U20 Six Nations, and the partnership with S4C is a key part of that strategy, as another route to engage with these tournaments.”