The Mustang Ranch, originally known as the Mustang Bridge Ranch, was a brothel in Storey County, Nevada, eight miles east of Reno.

Under owner Joe Conforte, it became Nevada's first licensed brothel in 1971, eventually leading to the legalization of brothel prostitution in 10 of 17 counties in the state. It became Nevada's largest brothel with 166 acres, and the most profitable.

The Mustang Ranch was forfeited to the federal government in 1999 following Conforte's convictions for tax fraud, racketeering and other crimes. It was auctioned off and reopened five miles to the east under the same name but different ownership.