Boncompagni is a surname associated with the Boncompagni princely Italian family. Notable people with the surname include:
Baldassarre Boncompagni, or Prince Baldassarre Boncompagni-Ludovisi (1821–1894), Italian historian of thematics and aristocrat Filippo Boncompagni (1548–1586), Italian Cardinal Giacomo Boncompagni (1548–1612), Italian feudal lord, the illegitimate son of Pope Gregory XIII Gianni Boncompagni (1932–2017), Italian television and radio presenter, director, writer Girolamo Boncompagni (1622–1684), Roman Catholic cardinal Gregorio II Boncompagni (1642–1707), Italian nobleman and duke and grand-nephew of Pope Gregory XIII Maria Eleonora I Boncompagni (1686–1745), Italian princess and marchioness Pietro Boncompagni (1592–1664), Italian arts collector Ugo Boncompagni (1502–1585), birth name of Pope Gregory XIII Francesco Boncompagni Ludovisi (1886–1955), Italian politician
See also
Boncompagni Ludovisi Decorative Art Museum or Museo Boncompagni, Rome, part of the National Gallery of Modern Art of Rome Casino di Villa Boncompagni Ludovisi, a villa in Porta Pinciana, Rome, Italy