Celtic League logo Magners League logo RaboDirect Pro12 logo Guinness Pro12 logo Guinness Pro14 logo
2001-2006 2006-2011 2011-2014 2014-2017 2017-present

Celtic League


Celtic League logo

The Celtic League was founded in 2001, featuring rugby union clubs from Scotland, Wales and All-Ireland.

Magners League


Magners League logo

Magners became title sponsors of the Celtic League in 2006. In 2010-11 Italian teams joined for the first time.

RaboDirect Pro12


RaboDirect Pro12 logo

In 2011 it was announced that RaboBank had bought the sponsorship, using their RaboDirect brand as title sponsor. The Pro12 name represented the number of teams in the league.

Guinness Pro12


Guinness Pro12 logo

Guinness became the new sponsors of the Pro12 on July 10, 2014.[1]

Guiness Pro14


Guinness Pro14 logo

The 2017 addition of two South African teams, Cheetahs and Southern Kings, brought the club count up to 14, and the competition was renamed accordingly.