Louis-Prudent-Alexandre Robichaud (25 January 1890 – 17 March 1971) was a New Brunswick political figure and jurist.
He was educated at the University of St. Joseph's College where he earned his Bachelor of Arts and at Dalhousie University where he graduated with a law degree.
He began his law practice in Richibouctou-Village, New Brunswick in 1915.
He tried again in the same riding in the 1935 federal election and was returned to the House of Commons of Canada as a Liberal MP.
He sat on the province's war committee during the 1940s and, in 1950, was appointed a Probate court judge.