Urdd Gobaith Cymru Welsh pronunciation: [ˈɨrð ˈɡɔbaɪθ ˈkəmrɨ], literally, the Welsh League of Hope, but normally translated as the Welsh League of Youth, or merely referred to as the Urdd, is a Welsh-medium youth movement with over 1,500 branches and over 50,000 members (as of 2006). The Urdd organises activities for its members ranging from small-scale meetings to the Urdd eisteddfod which lasts for a week, is attended by tens of thousands of visitors (over 100,000 in 2005) and is televised on S4C. The Urdd is Wales's largest youth organisation.
The Urdd was founded in 1922 by Sir Ifan ab Owen Edwards through an appeal in the children's magazine Cymru'r Plant ("the Children's Wales"). The first Urdd local branch was established in Treuddyn in 1922. In 1925 the first "Peace and Goodwill Message" from the youth of Wales to the youth of the world was issued by the Urdd, a custom that continues every year on 18 May. The logo of the Urdd is a triangle of green (symbolising Wales), red (symbolising fellow-man), and white (symbolising Christ): faithfulness to these three elements is the basis of the Urdd's motto. A version of this logo with eyes, arms and legs becomes the character Mistar Urdd.