Eugène Lanti was a pseudonym of Eugène Adam (19 July 1879 in Normandy, France – 17 January 1947 in Mexico).
Lanti was an Esperantist, socialist and writer.
He was a founder of Sennacieca Asocio Tutmonda, and a longtime editor of the internationalist socialist magazine Sennaciulo.
Lanti was a critic of Stalinism and the theoretician of a new doctrine, anationalism, which aimed to eliminate the very concept of the nation as a guiding idea of social organisation.