The Pimsleur language learning system is a language acquisition method developed by Paul Pimsleur. The system is based on four main ideas: anticipation, graduated interval recall, core vocabulary, and organic learning.

The Pimsleur method is an audio-based system, in which the listener constructs phrases or repeats from memory along with a recording. The system, as currently packaged by Simon & Schuster, is made up of multiple thirty-minute lessons, which are repeated until 80% comprehension is attained, at which point the user may advance to the next lesson. Because the lessons repeat themselves and add new material,[1] they do not demand 100% mastery before moving on.