Counties 4 Yorkshire is an English rugby union league at the tenth tier of the domestic competition for teams from Yorkshire. Club rugby in Yorkshire operates without promotion play-offs meaning that the top two teams are automatically promoted to Yorkshire 3 and the bottom two teams were relegated to Yorkshire 5 until the RFU made changes to the Yorkshire league structure. Each season a team from Counties 3 Yorkshire or Yorkshire 4 may be picked to take part in the RFU Junior Vase - a national competition for clubs at levels 9-12.