Macron already provides kit for Edinburgh Rugby but the sponsorship will see Macron become the official kit supplier for all Scotland representative teams and Glasgow Warriors.
Though the exact financial terms of the agreement were not announced, Scottish Rugby confirmed it is ‘the biggest sponsorship deal in its history.’
The new agreement, which commences on 1st July 2013, sees Macron replace former kit supplier Canterbury.
Scottish Rugby will also liaise with fans on the design of the next Scotland kit.
In a statement on the official website, Scottish Rugby’s Chief Executive Mark Dodson said: “This historic deal for Scottish Rugby is very welcome news and I would like to thank Macron for joining us in this ground-breaking partnership.
“The new deal will start on 1 July when our existing agreement with Canterbury of New Zealand comes to an end. I thank Canterbury for all their support of Scottish Rugby.
“Today is about welcoming Macron and looking forward to a long and fruitful partnership which will benefit our sport, on the international, top-level and community playing fields and for our supporters who pull on the shirt and share that pride.
“But the jersey itself belongs to the nation and that’s why we want to involve our supporters in what their team will be wearing.”
Gianluca Pavanello, Macron’s chief executive, added: “It is an honour for us to be welcomed by Scotland, one of the cornerstone nations of international rugby, where the game of 7s was born. It is with great pride that we announce the entrance of the Scotland national rugby team alongside Scottish Rugby’s pro-club Glasgow Warriors into the Macron family, while retaining Edinburgh Rugby, our first partnership in Scottish Rugby."