List of things named after Felix Klein

• Klein bottle
• Klein configuration
• Klein cubic threefold
• Klein four-group
• Klein geometry
• Klein graphs
• Klein model
• Klein polyhedron
• Klein surface
• Klein quadric
• Klein quartic
• Kleinian group
• Kleinian integer
• Kleinian model
• Kleinian ring
• Kleinian singularity
• Beltrami–Klein model
• Cayley–Klein metric
• Schottky–Klein prime form
• The Felix Klein Protocols
• Felix Klein medal, named after the first president of the ICMI, honours a lifetime achievement in mathematics education research.
• The of the IMU and ICMI aims to produce a book for upper secondary teachers that communicates the breadth and vitality of the research discipline of mathematics and connects it to the senior secondary school curriculum.