Ruggero (pronounced [rudˈdʒɛːro]), the Italian equivalent of Roger, may refer to:

• Ruggero I of Sicily (1031–1101) Norman king of Sicily
• Ruggero Berlam (1854–1920), Italian architect
• Ruggero Bonghi (1826–1895), Italian scholar, writer and politician
• Ruggero Borghi (born 1970), former Italian professional road bicycle racer
• Ruggero Cobelli (1838–1921), Italian entomologist
• Ruggero Deodato (born 1939), controversial Italian film director, actor and screenwriter, best known for directing horror films
• Ruggero Ferrario (born 1897), Italian racing cyclist and Olympic champion in track cycling
• Ruggero J. Aldisert (born 1919), judge on the United States Court of Appeals for the Third Circuit
• Ruggero Leoncavallo (1857–1919), Italian opera composer
• Ruggero Luigi Emidio Antici Mattei (1811–1883), Italian prelate of the Roman Catholic Church
• Ruggero Maccari (1919–1989), Italian screenwriter
• Ruggero Maregatti (1905–1963), Italian athlete who competed mainly in the 100 metres
• Ruggero Marzoli (born 1976), Italian professional road bicycle racer
• Ruggero Mastroianni (1929–1996), Italian film editor
• Ruggero Oddi (1864–1913), Italian physiologist and anatomist
• Pier Ruggero Piccio (1880–1965), Italian aviator and the founding Chief of Staff of the Italian Air Force
• Ruggero Raimondi (born 1941), Italian Bass-Baritone opera singer and sometime screen actor
• Ruggero Santilli (born 1935), Italian-American physicist and a proponent of fringe theories
• Ruggero Verity, Italian entomologist who specialised in butterflies

• Ruggiero
• Castel Ruggero, an Italian village in Campania