Erasmus (1466–1536) was a Dutch humanist scholar.

Erasmus may also refer to:

• Erasmus (Dune), a fictional robot in the Legends of Dune series by Kevin J. Anderson and Brian Herbert
• Erasmas, the narrator and protagonist of the 2008 novel Anathem by Neal Stephenson
• Erasmus, a character in the Quest for Glory video games
• Erasmus, a character in the 2003 film Barbie of Swan Lake
• Erasmus, a fictional ship in the 1975 novel Shōgun by James Clavell
• "Erasmus", a 2008 song from Dilettantes by You Am I

• Erasmus Programme, from 2014 Erasmus+, a European Commission programme for education, training, youth, and sport
• Erasmus Brussels University of Applied Sciences and Arts
• Erasmus Hall High School, Brooklyn, New York
• Erasmus University Rotterdam, Netherlands
  • Erasmus MC (Medical Center), Rotterdam, home to the faculty of medicine of Erasmus University Rotterdam
• Erasmus Hospital, a teaching hospital in Brussels associated with the Université libre de Bruxelles (Free University of Brussels)

• Erasmus (given name), a list of people with the name
• Erasmus (surname), a list of people with the name

• Erasmus (train), an express train between The Hague and Munich from 1973 to 2000
• Erasmus metro station, in Brussels
• Erasmus Bridge, or Erasmusbrug, a bridge in Rotterdam

• Erasmus Prize, an annual prize awarded by the Praemium Erasmianum Foundation
• 7907 Erasmus, a main-belt asteroid

• Gymnasium Erasmianum, Rotterdam, the second-oldest school in the Netherlands
• Rasmus (disambiguation)