- Republic Aviation Corporation1
- Republican National Committee (U.S.). Women's Division1
- Republican National Convention1
- Republican National Convention (9th : 1888 : Chicago, Ill.)1
- Research Institute1
- Rhode Island Realtors Association, Inc.1
- Rhodes, Fred Burnett, 1913-200136
- Ribicoff, Abraham, 1910-19981
- Richardson, William S.1
- Rickard, W. L.1
- Riegle, Roy W.1
- Robinson, H. G.1
- Robinson, John M.1
- Rockefeller, John D., IV (John Davison), 1937-2
- Rodino, Peter W., Jr., 1909-20052
- Rogers, Byron G. (Byron Giles), 1900-19831
- Rogers, Warren, 1922-20031
- Rogers, William P. (William Pierce), 1913-20011
- Rohan, William H.4
- Roosevelt, Franklin D. (Franklin Delano), 1882-19456
