Brad Carlton is a fictional character from the CBS soap opera The Young and the Restless, portrayed by Don Diamont. The character became a mainstay on the series for over 20 years. He was known for his relationships with Traci Abbott, Ashley Abbott and Victoria Newman, as well as his business rivalries with Jack Abbott and Victor Newman. In 2009, the character drowned in a frozen lake.

Don Diamont portrayed the role of Brad for the character's entire run on the series. He first appeared on April 7, 1985, as the new Abbott family gardener. In 1993, Russell Todd was temporarily recast in the role.

Diamont’s character has also appeared on The Bold and the Beautiful in past crossover events. Diamont’s appearances on the show were April 19-21, 1993 and March 8, 1995.

Diamont departed The Young and the Restless in 1996 and returned after two years on July 28, 1998. Ten years later in December 2008, news broke that Diamont had been let go from The Young and the Restless. Fellow cast member Eric Braeden, who portrays Victor Newman, spoke out on Diamont's firing, saying:

I was very sad about that, to be quite frank with you. He did some of his best work in the last months, where he played the "shifty" guy and the bad guy and you don't know quite what he is up to. I think he played that extremely well. I always think that's a mistake to let people go that have been part of the fabric as long as he has been. Furthermore, he was related to people on the show, and personally, I think those things are a mistake. If you want to save money, then cut down on hiring new actors.

Diamont filmed his final scenes for the series in January 2009, and his final airdate was on February 5 when he drowned after falling in a frozen lake. Shortly after, it was announced that Diamont had been hired on The Bold and the Beautiful. He was to portray Bill Spencer Jr., created specifically for him by head writer Bradley Bell. "It's funny how one door closes and another opens," Diamont said. "I had a lot of emotion tied to Y&R. My entire adult life had been there, including so many relationships. Little did I know that such a great character and work situation was literally around the corner." Diamont briefly reprised the role eight months after the character's death as a hallucination by his daughter, Colleen.

Brad Carlton was first introduced as the Abbotts' gardener, who caught the eye of the youngest Abbott daughter, Traci. The two were married twice, with the second marriage producing a daughter, Colleen Carlton. During his second marriage to Traci, Brad was held captive in a cage by his unstable first ex-wife, Lisa Mansfield. After he divorced Traci, Brad was tricked into marrying the wealthy widow, Cassandra Rawlins, after a ski trip to Aspen. Brad eventually returned to Genoa City with plans to divorce Cassandra, but en route to finalize her divorce plans, Cassandra was hit by a truck and killed. Brad inherited her fortune and her estate. Throughout his on-and-off relationship with Traci, he had feelings for her sister, Ashley Abbott. They eventually married, and he adopted her daughter who was given his last name, Abby Carlton. Ashley was pregnant with Brad's child, but she lost the baby in a car accident. They split up, and he later married Victoria Newman in November 2006.

Known as a "playboy," Brad has also had flings with Lauren Fenmore, Jill Abbott, Diane Jenkins and Olivia Winters. He was also briefly engaged to Nikki Newman. In one 1994 storyline, Brad had a heart attack during a passionate night with Lauren.