Robert Deane may refer to:
- Sir Robert Deane, 5th Baronet (c. 1707–1770), Irish MP for Carysfort and Tallow
- Robert Deane, 1st Baron Muskerry (1745–1818), his son, Irish MP for Carysfort and Cork County
- Robert Deane, 9th Baron Muskerry (born 1948), Irish peer
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