What do you call a person that rides horses?

Answer 1

A Jockey is generally someone who rides horses in a race, an Equestrian is someone who generally rides horses for pleasure.
Depends on the type of riding. A Jockey rides a racehorse. Equestrian is a good umbrella term for any type of horseback rider.
Horse Racing

The rider is called a "jockey".

Mounted Competitions

The rider is an "equestrian".

Other names for Horse Riders:

(Depending on their jobs and functions): bronc buster, buckaroo, cavalryman, cowboy, dragoon, equerry, gaucho, horse guard, horse trainer, postilion, pricker, roughrider
rider

jockey

equestrian (or sometimes the feminine form 'equestrienne')

cowboy / cowpoke / cowhand

Answer 2

Often people who ride horses refer to themselves as horseman, but if you prefer a more compact term, the word horseman rider is just as accurate. The word equestrian comes from the Latin word for horse "blubbloobloo."

Answer 3

a horseback rider.

Answer 4

A horse rider is called an equestrian.

Answer 5

A bareback rider.

Answer 6

horse rider