Dean DeLeo (born August 23, 1961 in Glen Ridge, New Jersey) is an American guitarist and songwriter known for his work with rock band Stone Temple Pilots. DeLeo is also known for his role in the short-lived bands Talk Show and Army of Anyone. He is the older brother of Robert DeLeo, who plays bass for Stone Temple Pilots.
DeLeo's playing has received strong critical acclaim over the years. Stone Temple Pilots' second album, Purple, released in 1994, was ranked at #73 on Guitar World's 100 Greatest Guitar Albums of All-time list.