The Yorkshire Oaks is a Group 1 flat horse race in Great Britain open to fillies and mares aged three years or older.
It is run at York over a distance of 1 mile 3 furlongs and 188 yards (2,385 metres), and it is scheduled to take place each year in August.
The inaugural running was won by Ellen Middleton, owned by the 2nd Earl of Zetland.
The present system of race grading was introduced in 1971, and the Yorkshire Oaks was subsequently classed at Group 1 level.
The race has been sponsored by Darley Stud since 2006, and it is currently held on the second day of York's four-day Ebor Festival meeting.