Cimarron \ci-marron, cim(ar)-ron\ as a girl's name (also used as boy's name Cimarron). Place name: a city in Kansas and a river that runs across the Great Plains from New Mexico to Oklahoma. It was made famous by an Edna Ferber novel that was the basis for movies made in 1933 and 1961.

Cimarron has 3 variant forms: Cimeron, Simarron and Simeron.