Erno

Erno is a masculine given name of Hungarian origin. In Hungary it is typically written Ernő, but in international contexts it is often rendered as Erno without the diacritic. It is the Hungarian form of the given name Ernest (the German Ernst), generally associated with the meaning serious or resolute.

The name has been and remains common in Hungary and among Hungarian communities abroad. It is used across generations and appears in literature, historical records, and contemporary contexts.

Notable people with the name include Ernő Rubik (born 1944), a Hungarian architect and professor who invented the Rubik's Cube in 1974 and co-founded the Rubik's Brand Ltd. The name is borne by other Hungarian figures in science, the arts, and public life, reflecting its status as a traditional, widely recognized given name in Hungarian culture.