- Ristow (continued)
- Ritter
- Rose (b. about 1876, d. before 1930)
- Robbins
- Robenson
- Robershotte
- Roberts
- Robertson
- Robins
- Robinson
- Roche
- Rockwell
- Rodalnik
- Rodriguez
- Roelofs
- Rogers
- Roghair ver Steeg
- Rohda
- Rohde
- Rohregger
- Roitman
- Rokus
- Anna (b. 1879, d. 1885)
- Anna Maria (b. 1886, d. 1977)
- Bernard Joseph (b. 1908, d. 2003)
- Bernard S. (b. 1847, d. 1926)
- Catherine Anna (b. 1883, d. 1966)
- Frances (b. 1889, d. 1961)
- Herman J. (b. 1802, d. 1872)
- Johann Georg
- Joseph Herman (b. 1880, d. 1952)
- Maria Louise (b. 1878, d. 1961)
- Mary (b. about 1852, d. 1886)
- Rolfe
- Roll
- Romanelli
- Romanko
- Romanski
- Rondhout
- Ronkris
- Ronnass
- Roos
- Rosafsky
- Rosales
- Rose
- Roseman
- Rosen
- Rosenberg
- Rosenblum
- Rosenfeld
- Rosenkrantz
- Rosenlicht
- Rosenthal
- Rosenzweig
- Rosman
- Roth
- Rothbart
- Rothstein
- Rotner
- Rotstein
- Rouswell
- Rowe
- Rowley
- Royce
- Royden
- Royse
- Rozalska
- Rozas
- Rozenbaum
- Rozenblatt
- Rozenblum
- Yossev (b. 1891, d. between 1940 and 1945)
- Rozencwajg
- Rozenstein
- Rozensztajn
- Rubakh
- Rubespierre
- Rubin
- Rubinstein
- Ruby
- Ruck
- Ruegamer
- Ruel
- Ruff
- Ruitinga
- Rulifson
- Rumboldt
- Rumelt
- Runyon
- Ruscansky
- Russ
- Russell
- Ann (b. 1814, d. 1892)
- Henry (b. 1775, d. 1826)
- Mary (b. 1773, d. 1819)
- Rust
- Henry (b. about 1613, d. after 1684)
- Ruurds
- Ryan
- Rychner
- Rynetzki
- Sacco
- Sadewitz
- Sadin
- Sadowitz
- Sadt
- Safran
- Safranovich
- Saget
- Saila
- Saks
- Sal-Shor
- Salas
- Sale
- Salie
- Salkind
- Salley Jennings
- Salter
- Saltonstall
- Salzman
- Samols
- Samolski