Reuleaux
Reuleaux may refer to:
- Franz Reuleaux (1829–1905), German mechanical engineer and lecturer
- in geometry:
- Reuleaux polygon, a curve of constant width
- Reuleaux triangle, a Reuleaux polygon with three sides
- Reuleaux heptagon, a Reuleaux polygon with seven sides that provides the shape of some currency coins
- Reuleaux tetrahedron, the intersection of four spheres of equal radius centered at the vertices of a regular tetrahedron
- Reuleaux polygon, a curve of constant width