The Lions triumphed in the southern hemisphere for the first time in 16 years courtesy of tries from Alex Corbisierio, Jonathan Sexton, George North and Jamie Roberts, together with 21 points from the boot of Cardiff Blues hero Leigh Halfpenny in Sydney.
With 15 Welsh players selected for the 2013 Tour, and 11 Welshmen involved in the stunning 41-16victory to clinch the series last weekend at the ANZ Stadium; grass-roots supporters across the four Welsh Regions have taken huge pride in their home-grown players performing on global rugby's biggest stage.
The 10 Welsh players in the starting XV equaled the record for a Welsh contingent set in Brisbane in 1950, and Justin Tipuric's appearance off the bench meant 11 actually took part in the series defining game.
Stand-out performances and key roles from Welsh regional players have been a source of pride for the region's supporters including captaincies for Sam Warburton (Cardiff Blues), Alun Wyn Jones (Ospreys) and Dan Lydiate (formerly Newport Gwent Dragons).
Jonathan Davies (Scarlets) played 513 minutes on the Tour, the most of any player, and Halfpenny set individual Lions records for most points in a Test, 21, and most in a series, 49.
Chief Executive of Regional Rugby Wales (RRW) on behalf of the four Welsh Regions, the Cardiff Blues, Ospreys, Scarlets and Newport Gwent Dragons said: "As Welsh Regions we would like to congratulate the whole Lions squad, Warren Gatland and his management team on a superb series victory and thrilling win on Saturday.
"With Welsh players making up the largest contingent for the Tour, it has been a great source of pride and enjoyment for all those who work in our game across grassroots rugby and our community and Premiership clubs, the four Welsh regions and the governing body.
"It has been inspiring for the many people who have watched our world-class players grow up in rugby from within the regions and worked with these players from a young age; equally it was great to see our players paying tribute to all those back home who have supported them in their early careers including the many volunteers who are the unsung heroes of our community game.
"There was plenty of debate about the Welsh dominance in the team for Saturday however, credit to all our players for holding fast regardless of the pressure and showing a strong and united team spirit with huge commitment and humility to honour the Lions shirt with such a convincing final win.
"The Lions players deserve to enjoy and celebrate in their success and we are all delighted for them. It is a proud time for all those who have come together to invest and commit time and resources into developing players in Welsh rugby at all levels.
"The Welsh players' success and profile from this Tour will undoubtedly inspire new generations of young players in the game throughout Wales which is so positive. It shows how much Welsh rugby can achieve in healthy partnership."