Ludovisi can refer to:

• Ludovisi (family), a noble Italian family
  • Ludovisi papacy of Pope Gregory XV
  • Cardinals Ludovisi
    • Cardinal Alessandro Ludovisi, later Pope Gregory XV
      • Cardinal Ludovico Ludovisi (the Pope's Cardinal Nephew and Orazio's son)
      • Cardinal Niccolò Albergati-Ludovisi (Ludovico's cousin), Prince of Piombino
  • Non-ecclesiastic family members
    • Orazio Ludovisi (Pope Gregory XV's brother), Italian military commander and patrician of Bologna
      • Niccolò Ludovisi (Orazio's son), Prince of Piombino
        • Giovan Battista Ludovisi (Niccolò's son), Prince of Piombino
        • Olimpia Ludovisi (Niccolò's daughter and grand-niece of two popes)
        • Ippolita Ludovisi (Niccolò's daughter and grand-niece of two popes)
  • Villa Ludovisi, a suburban villa in Rome, built in the 17th century for Cardinal Ludovico, destroyed in the 19th century; its territory becoming the Ludovisi rione.
    • Casino di Villa Boncompagni Ludovisi, a remaining portion of the villa, now housing the U.S. Embassy in Italy
    • Palazzo Boncompagni Ludovisi, a remaining portion of the villa
    • Juno Ludovisi, a colossal Roman marble head from a statue of Antonia Minor as the goddess Juno
    • Ludovisi Dionysus, a Roman work of the 2nd century CE, first displayed in front of the Palazzo Grande, at the Villa Ludovisi
    • Ludovisi Ares, an Antonine Roman marble sculpture of Mars
    • Ludovisi Gaul, a Roman marble group depicting a man in the act of plunging a sword into his breast
• Audoenus Ludovisi (Owen Lewis; 1532-1594), Welsh Roman Catholic jurist, administrator, diplomat, and Bishop of Cassano all'Jonio
• Francesco Boncompagni Ludovisi (1886–1955), Italian politician
• Felice Ludovisi (1912-20), Italian architect and academici
• Ludovisi, Lazio, the XVI rione in the City of Rome
• Boncompagni Ludovisi Decorative Art Museum, a National Gallery of Modern Art in rome, Italy
• Palazzo Ludovisi, a palace in Rome also built for Cardinal Ludovico; now the seat of the Italian Chamber of Deputies
• Ludovisi Throne, a sculpted block of white marble hollowed at the back and carved with bas-reliefs on the three outer faces, from about 460 BCE
• Great Ludovisi sarcophagus, an ancient Roman sarcophagus dating to around 250–260 AD

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