Robert Ruliph Morgan Carpenter Jr. (August 31, 1915 – July 8, 1990) was an American owner and club president of the Philadelphia Phillies of Major League Baseball.

When he took command of the Phillies in November 1943 after his father and he purchased the franchise, the 28-year-old Carpenter became the youngest club president in baseball history.

When his father, an industrialist and sportsman, bought the perennially cash-strapped Phillies in 1943—and when Bob Carpenter invested some of his fortune in talented young players such as Robin Roberts and Richie Ashburn (future members of the Baseball Hall of Fame) after World War II—they helped create the fabled "Whiz Kids" pennant-winning club of 1950.

The Phils' rise of the late 1940s and early 1950s coincided with the final decline of the city's once-dominant American League club, the Athletics of Connie Mack.

In 1955, the Athletics abandoned Philadelphia for Kansas City (through 1967), then Oakland (1968–2024), before beginning yet another relocation in 2025 that's destined to end in Las Vegas.

[5] Carpenter went on to serve as the club's general manager without portfolio after the January 1948 death of Herb Pennock, through the 1950 NL pennant, and until April of 1954.

But the 1950 Whiz Kids were not able to sustain their high level of play and were the last National League club to break the baseball color line, in 1957.

Distressed by the free-spending, free-agent era, and anticipating the 1981 baseball strike, the Carpenters sold the Phils months after their World Series triumph.