Marconi is surname and, more unfrequently, a given name. Notable people with the surname include:
Al Marconi (born 1969), Spanish Guitar international performer
Alfonso Marconi (1865–1936), Italian businessman and collector
Andrea Marconi (born 1985) Italian footballer
David Marconi, American screenwriter
Dominic Anthony Marconi (born 1927), American Roman Catholic bishop
Enrico Marconi, also known as Henryk Marconi (1792–1863), Italian architect
Francesco Marconi (1853 or 1855–1916), Italian operatic tenor
Gaudenzio Marconi (1841–1885), Italian photographer
Gioia Marconi Braga (1916−1996), daughter of Guglielmo Marconi, founder and chairwoman of the Marconi Foundation Gloria Marconi (born 1968), Italian long-distance runner Guglielmo Marconi (1874–1937), Italian electrical engineer and inventor of radio Ivan Marconi (born 1989), Italian footballer Juan Martínez Marconi (born 1982), Chilean footballer Joe Marconi (1934–1992), American football fullback Jole Bovio Marconi (1897-1986), Italian archaeologist Juan Martínez Marconi (born 1982), Chilean footballer Lana Marconi (1917–1990), Romanian-French actress Leandro Marconi (1834–1919), architect, son of Enrico Marconi Leonard Marconi (1835–1899), Polish and Austro-Hungarian architect and sculptor Lou Marconi (born 1973), American professional wrestler, trainer, and occasional actor Luca Marconi (born 1989), Italian motorcycle racer Maria Marconi (born 1984), Italian diver Michele Marconi (born 1989), Italian footballer Nazzareno Marconi (born 1958), Roman Catholic bishop of Macerata and Recanati Nicola Marconi (born 1978), Italian diver Rocco Marconi (before 1490–1529), Italian painter Saverio Marconi (born 1948), former Italian actor and stage director Tommaso Marconi (born 1982), Italian diver Władysław Marconi (1848-1915), Polish architect