Dennis Ray "Oil Can" Boyd (born October 6, 1959) is a former starting pitcher in Major League Baseball.
Boyd played for the Boston Red Sox (1982–89), Montreal Expos (1990–91), and Texas Rangers (1991).
He batted and threw right-handed.
His nickname has been reported as coming from his beer-drinking days in his hometown of Meridian, Mississippi, where beer is referred to as "oil." However, in a September 2012 interview, he said that wasn't strictly true; it was actually "rot-gut whiskey" from the neighborhood moonshiner.