Arturo Issel (Genoa April 11, 1842 – Genoa November 27, 1922) was an Italian geologist, palaeontologist, malacologist and archaeologist, born in Genoa. He is noted for first defining the Tyrrhenian Stage in 1914. Issel was also renowned at the time for his work on codifying information within anthropology and ethnology, for which he is still remembered. The Issel Bridge, an undersea ridge separating parts of the Tyrrhenian Sea, and the Issel Seamount were named in Arturo Issel's honor. The mineral is also named in his honor.