The 1909–10 Yorkshire Cup was the fifth occasion on which the Yorkshire Cup competition, a Rugby league tournament, was held.
This year's final was between two clubs who had not previously played in the final and Huddersfield won the trophy by beating Batley by the score of 21–0.
The match was played at Headingley, Leeds, now in West Yorkshire.
This season there were again no junior/amateur clubs taking part and so the total of entries remained the same at thirteen.
This, in turn, resulted in three byes in the first round.