Annie Montague Alexander (1867–1950) was an American philanthropist and paleontological collector. She established the University of California Museum of Paleontology (UCMP), Museum of Vertebrate Zoology (MVZ), and financed their collections as well as a series of paleontological expeditions to the western United States at the turn of the 20th century. She took part in many of these expeditions, gathering a significant collection of fossils and exotic game animals in her own right.