- Rowston
- Roy
- Royal
- Royce
- Rozelle
- Ruby
- Rudd
- Rudin
- Rudnai
- Rudolph
- Ruediger
- Rugg
- Ruggles
- Ruhnke
- Rule
- Rulestead
- Rumball
- Rumsey
- Runey
- Runyon
- Rupert
- Rupprecht
- Rusert
- Rush
- Russ-Fry
- Russell
- Russert
- Russilillo
- Rust
- Ruston
- Rusu
- Rutledge
- Rutter
- Ryan
- Rybak
- Ryden
- Ryder
- Ryerson
- Rylant
- Ryman
- Rymsza
- Saathoff
- Sabater
- Sabin
- Sabo
- Sacchi
- Saccomano
- Sackett
- Safford
- Sage
- Sager
- Sailer
- Sain
- Sale
- Salie
- Salin
- Salisbury
- Salmon
- Salsbury
- Salsman
- Salstrom
- Saltsman
- Saltzman
- Salvador
- Samples
- Sampson
- Sanborn
- Sanchez
- Sander
- Sanders
- Sanderson
- Sandham
- Sands
- Sanford
- Sangfield
- Sanguinetti
- Sansouce
- Sapcut
- Sappenfield
- Sargeant