The Earl of Derby is a title that has been created thrice in British history. The first Earl may refer to:
- Robert de Ferrers, 1st Earl of Derby (1062–1139), English nobleman
- Henry of Grosmont, 1st Duke of Lancaster (c. 1310–1361), previously the Earl of Derby, English diplomat, politician, and soldier
- Thomas Stanley, 1st Earl of Derby (1435–1504), English nobleman and politician
This disambiguation page lists articles associated with the title 1st Earl of Derby.
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