Johan Laurentz Jensen, often referred to as J. L. Jensen (8 March 1800, Gentofte - 26 March 1856, Copenhagen) was a Danish artist who specialized in flower painting.

In parallel with his studies at the Danish Academy, he became a pupil of Christoffer Wilhelm Eckersberg and also of Cladius Detlev Fritzsch. Specializing in flower painting, Jensen continued his education in Paris under the Flemish flower painting brothers, Gérard and Cornelis van Spaendonck, and at the porcelain factory in Sèvres where he learnt the art of miniature flower painting.

Taking 17th-century Dutch flower painting as a starting point, he revived the art in Denmark. His floral arrangements often had both a decorative and symbolic value. Danish plants we...