Eduard Johann Renggli was a Swiss drawing teacher, painter, graphic artist and graphic designer.

Eduard Renggli was the youngest son of the painter Jean Renggli and Rosa, née Pfluger. Renggli completed an apprenticeship as a decorative painter in Lucerne and from 1902 attended the Academy of Fine Arts in Munich. He then stayed at the Accademia di San Luca in Rome.

In 1906 Renggli returned to Lucerne, where he taught drawing at the Cantonal School for over 30 years and held a teaching post at the Lucerne School of Applied Arts. In 1908 he married Mathilde, née Kech. As a freelance artist and graphic designer,he created bookplates, diplomas, posters and murals.

From 1904 until his death, Renggli was a member of the Lucerne section of the Society of Swiss Painters and Sculptors (GSMBA).