Louis Lucien Bonaparte (January 4, 1813 – November 3, 1891) was the third son of Napoleon's second surviving brother, Lucien Bonaparte. He was born at Thorngrove , Worcestershire, England.

A philologist and politician, he spent his youth in Italy and did not go to France until 1848, when he served two brief terms in the Assembly as representative for Corsica (1848) and for the Seine départements (1849).

His classification of dialects of the Basque language is still used.

Louis Lucien Bonaparte died at Fano, Italy.