Altieri is an Italian surname. It may refer to:
Altieri family, a noble Italian family from Rome, whose most notable exponent was Pope Clement X (r. 1670-1676);
Notable people with the surname include:
Carlos Delgado Altieri, Puerto Rican politician
Charles Altieri, American academic
Elena Altieri (1910–1997), Italian actress
Giambattista Altieri (1589–1654), Italian Roman Catholic cardinal
John Altieri (1969–2008), American singer and actor
Kevin Altieri, American television director
Lodovico Altieri (1805–1867), Italian Roman Catholic cardinal
Michel Altieri (born 1978), Italian singer and actor
Miguel Altieri, American academic
Mike Altieri (born 1973), American actor
Mitchell Altieri, American film director
Vincenzo Maria Altieri (1724–1800), Italian Roman Catholic cardinal
Willie "Two-Knife" Altieri (1891–1970), American mobster
