Robert Hayden Neff (born October 9, 1995) is a retired American artistic gymnast.

He lived outside of the United States for nine years, spending time in Australia, Switzerland, and England.

He attended Brookfield Academy and later enrolled at Stanford University to pursue gymnastics.

In 2019, he represented the United States at the Pan American Games held in Lima, Peru and he won the silver medal in the men's pommel horse event.

[1][2] He also won the silver medal both in the floor exercise and in the men's artistic team all-around event.