Dr. Vincent Raimondi Racaniello (born 1953)
James Henry Rand II (born 1886)
James Henry Rand III (born 1913)
Dr. Frank Joseph Rauscher II (born 1931)
Dr. Robert Ray Redfield Sr. (born 1923)
Dr. Robert Ray Redfield Jr. (born 1951)
Dr. William Carlisle Reeves (born 1916)
Dr. William Carlisle Reeves (born 1943)
Dr. Alfred J. Restaino (born 1931)
Dr. Cornelius Packard "Dusty" Rhoads (born 1898)
Dr. Gary Harvey Rhodes (born 1944)
Dr. Charles Moen Rice III (born 1952)
Elliot Lee Richardson (born 1920)
Dr. Henry Shattuck Richardson (born 1955)
Dr. Douglas Daniel Richman (born 1943)
Prof. Jürgen Albrecht Richt (born 1958)
Dr. Darrell Orlyn Ricke (born 1959)
Charles Hammerman Rivkin (born 1962)
Dr. Presley Marion Rixey (born 1852)
Charles Heskett Rixey (born 1983)
Dr. Harriet Latham Robinson (born 1938)
Dr. Robin Augustus Robinson (born 1955)
James Gerard Roche (born 1939)
Nelson Aldrich Rockefeller (born 1908)
Dr. John Timothy Roehrig (born 1952)
Edouard "Edward" Rona (born 1887)
Dr. Erzsébet "Elizabeth" Róna (born 1890)
Dr. Barbara Hatch Rosenberg (born 1930)
Dr. Steven Aaron Rosenberg (born 1940)
Dr. Derrick James Rossi (born 1966)
Dr. Francis Peyton Rous (born 1879)
Chad Joseph Roy, Ph.D. (born 1962)
Dr. Francis William Ruscetti (born 1943)
Dr. John Perkins Russell (born 1851)