Eugène Samuel Grasset (25 May 1845 – 23 October 1917) was a renowned Swiss decorative artist whose impactful work greatly shaped the Art Nouveau movement. Grasset spent a significant portion of his career in Paris, France, where he emerged as a leading figure throughout the Belle Époque—a time marked by vibrant cultural and artistic development.

Throughout his career, Grasset engaged in a wide range of design disciplines, such as illustration, poster creation, jewelry, furniture, and textile design. He became especially esteemed for his intricate and elaborate style, consistently featuring flowing lines, botanical themes, and balanced compositions, all signature elements of Art Nouveau. His creations played a pivotal role in forming the visual identity associated with the movement.

Grasset is especially well known for his eye-catching posters, many of which promoted events, products, and publications. His works garnered acclaim not just for their visual appeal, but also for their effectiveness in conveying information to a wide audience. Alongside his commercial pursuits, he produced illustrations for various books and magazines, widening his impact within the realms of visual arts and graphic design.

In addition to his art, Eugène Grasset made significant contributions to the field of design education, teaching at esteemed Parisian institutions and guiding many younger artists and designers. His enduring legacy is evident in both the lasting popularity of Art Nouveau and the sustained interest in decorative arts from the late nineteenth and early twentieth centuries.