This is a list of topics named after the Greek mathematician Euclid.

Mathematics

Number theory

• Euclidean algorithm
  • Extended Euclidean algorithm
• Euclidean division
• Euclid–Euler theorem
• Euclid number
• Euclid's lemma
• Euclid's orchard
• Euclid–Mullin sequence
• Euclid's theorem

Algebra

• Euclidean domain
• Euclidean field

Geometry

• Euclidean group
• Euclidean geometry
  • Non-Euclidean geometry
• Euclid's formula
• Euclidean distance
  • Euclidean distance matrix
• Euclidean space
  • Pseudo-Euclidean space
• Euclidean vector
• Euclidean relation
• Euclidean topology
• Euclid's fifth postulate

Other

• Euclid's Elements
• Euclid's Optics
• Euclid (spacecraft)
• Euclid, Ohio

Euclid, Minnesota

• Euclidean rhythm a term coined by Godfried Toussaint in his 2005 paper "The Euclidean Algorithm Generates Traditional Musical Rhythms"
• Euclid (computer program)
• Euclid (programming language)
• Euclid, a supercomputer built by the fictional character Maximillian Cohen in the 1998 film π
• Euclid Creek
• Euclid Avenue, a street in Manassas, Virginia
• Euclid Avenue, a street in Arlington Heights, Illinois
• Euclid Avenue, a street in Miami Beach, Florida
• Euclid Avenue, a street in Des Moines, Iowa
• Euclid St, a street in Orange County, California
• Euclid Avenue, a street in Toronto, Ontario
• Euclid, an object designation within the SCP Foundation stories, denoting an anomaly that is difficult, but fairly straightforward to contain.
• Mount Euclid in New Zealand's Paparoa Range was named after him in 1970 by the Department of Scientific and Industrial Research.^[1]
• Euclidate