Jean Gilbert (born Johann Georg Gilbert on February 12, 1862, in Berlin, Germany; died on June 26, 1942, in Paris, France) was a prominent composer known primarily for his contributions to operetta, operas, and musical theatre in the early 20th century. His work is often associated with the genre of light music, which combines elements of classical music with popular and theatrical styles. Notable works by Gilbert include the operettas "Die Schlittschuhläufer" (The Skaters, 1912) and "Die schöne Helena" (The Beautiful Helen, 1912), as well as the opera "Die Rose von Stambul" (The Rose of Stambul, 1916), which enjoyed widespread popularity in Germany and beyond. His compositions are characterized by catchy melodies, witty lyrics, and engaging orchestration. Gilbert's impact on music can be seen in his influence on the development of the operetta genre, bridging the gap between traditional operatic forms and the burgeoning styles of musical theatre. He contributed to the evolution of light opera in the early 20th century, paving the way for later composers in the genre. His work remains significant in the context of European musical theatre history.