The Celtic League Champions have taken the decision as they look to attract even more fans from the rest of the region - including Aberavon, Bridgend and the Valleys - to their new 20,200 capacity home at The Morfa.
Since forming two years ago, the Ospreys have quickly established themselves as Wales' pre-eminent region, blending the traditional Neath-Swansea rivalries into a brand new side which has attracted a remarkable number of core supporters from both teams.
As Roger Blyth, Joint Managing Director of the Ospreys explains, "Over the last two years, we've worked extremely hard to establish a truly regional rugby side. We have a superb set of core supporters from Neath and Swansea and now we really want to reach out to the rest of the region. It is vital for the future of Welsh rugby that all the other professional sides take regional rugby as seriously as we do."
Mike Cuddy, Joint Managing Director, adds, "We've merged two great clubs with differing ideals and visions into one of the most exciting teams Europe. In renaming ourselves as the Ospreys we're showing the whole area, and the whole of Wales, just how committed we are to regional rugby. Furthermore, expanding our fanbase is a vital step if we are to maintain our position as the best team in Wales and it also provides a huge springboard in our quest to win the Heineken Cup."
The last five years have been an emotional rollercoaster on and off the pitch for RGC1404. Promotion to the Principality Premiership was the culmination of five years of hard work and investment in North Wales. WRU TV caught up with prop Joe Simpson, who was one of the first intake of WRU North Wales Academy players in 2010.
Ebbw Vale captain Damien Hudd picked up the biggest accolade of the night at the 11th Principality Premiership Awards Evening held at Principality Stadium, after leading his side to the title for the first time.
Wales assistant coach Robin McBryde is predicting a tough battle against England on Sunday despite the fact they may not be considered to be at full strength. Players will be out to impress Eddie Jones which makes England a dangerous proposition, he says.
Wales U20 captain Tom Phillips and performance psychologist Dr Rich Neil explain why spending three days at Monmouth RFC has further strengthened the togetherness of the squad ahead of the #WorldRugbyU20s