Counties 1 Yorkshire is an English rugby union division, the seventh tier of the domestic competition, and the top level for local rugby union in parts of Yorkshire.

Each season a team from Counties 1 Yorkshire is picked to take part in the RFU Intermediate Cup - a national competition for clubs at level 7.

The league was substantially similar to Yorkshire 1 with the 9 lowest ranked teams returning (1st to 5th were 'promoted' to Regional 2 North East) and supplemented by top 3 from Yorkshire 2 and so with five departing but only three arriving the league was reduced from 14 teams to 12.

The creation of National 5 North for the 1993–94 season meant that Yorkshire 1 dropped to become a tier 10 league.

Since the 2000–01 season there has been a play-off between the runners-up of Durham/Northumberland 1 and Yorkshire 1 for the third and final promotion place to North 1 East.