The Objectivist movement is a movement of individuals who seek to study and advance Objectivism, the philosophy expounded by novelist-philosopher Ayn Rand. The movement began informally in the 1950s and consisted of students who were brought together by their mutual interest in Rand's novel, The Fountainhead. The group, ironically named "The Collective" due to their actual advocacy of individualism, in part consisted of Leonard Peikoff, Nathaniel Branden, Barbara Branden, Alan Greenspan, and Allan Blumenthal. Nathaniel Branden, a young Canadian student who had been greatly inspired by The Fountainhead, became a close confidant and encouraged Rand to expand her philosophy into a formal movement. From this informal beginning in Rand's living room, the movement expanded into a collection of think tanks, academic organizations, and periodicals.

Objectivism is a philosophical system named and developed by Russian-American writer and philosopher Ayn Rand. She described it as "the concept of man as a heroic being, with his own happiness as the moral purpose of his life, with productive achievement as his noblest activity, and reason as his only absolute".