Alfred Jean Andre Cluysenaar was a Belgian Portrait painter.

Jean Alfred was a member of the Cluysenaar family, an artistic family from Brussels. He is the son of Jean-Pierre Cluysenaar and Elisabeth Puttaert. He became the father of the painter André Cluysenaar.

He studied in the Académie Royale des Beaux-Arts of Brussels in the atelier of Joseph Jaquet and François-Joseph Navez. He painted some important decorations in the Royal Zoo of Antwerp and in 1861-1876 he ornated the Aula in Ghent. Cluysenaar was famous for his monumental decorations of high quality. Awarded in the expositions of Brussels, Ghent, Paris Vienna and London. Some of his paintings are kept in the Royal Museum of Fine Arts Antwerp.