Louis Bernard Bonjean (4 December 1804 – 24 May 1871) was a French jurist who was a Senator under Napoleon III.

He had planned to make a career in legal education, but gave up this ambition after competing unsuccessfully to become a professor.

[2] Bonjean entered politics in 1848 and was elected as representative for Drôme on a Republican platform on 23 April 1848.

At the start of 1851 the President gave him the post of Minister of Agriculture and Commerce, which he held for two weeks from 9 to 24 January.

He supported the coup of December 1851, and was one of the members of the Council of State of 1852, presiding over the Interior section.