Devin Weston is a character in the Grand Theft Auto series, appearing as a central character and one of the two main antagonists in Grand Theft Auto V.

He is an influential billionaire and a business tycoon operating in San Andreas and runs various businesses.

Weston is an American billionaire, venture capitalist, and investor who owns shares in several major companies, from hotel chains like Banner Hotel & Spa to alcohol manufacturers like Patriot Beer and Nogo Vodka; but most importantly, he is a major shareholder of Merryweather Security, a private military company that acts as the muscle of his various corporate and criminal interests. He is also shown to have influence within law enforcement, as evidenced by his relationship with FIB agent Steve Haines and his ability to procure a police escort for his lawyer and second-in-command, Molly Schultz.