- Rowean
- Rowell
- Rowett
- Rowland
- Rowlandson
- Rowles
- Rowlet
- Rowley
- Rowston
- Roy
- Royal
- Royce
- Royster
- Rozelle
- Ruby
- Ruchet
- Ruck
- Rudd
- Ruddock
- Rudin
- Rudnai
- Rudolph
- Ruediger
- Ruff
- Ruffe
- Rugg
- Ruggles
- Ruhnke
- Rule
- Rulestead
- Rumball
- Rumsey
- Runey
- Runyon
- Rupard
- Rupert
- Rupprecht
- Ruscoe
- Rusert
- Rush
- Russ-Fry
- Russell
- Russert
- Russilillo
- Rust
- Ruston
- Rusu
- Rutherford
- Rutledge
- Rutter
- Ryan
- Ryant
- Rybak
- Ryden
- Ryder
- Ryerson
- Rylant
- Ryman
- Rymsza
- Saathoff
- Sabater
- Sabin
- Sabo
- Sacchi
- Saccomano
- Sache
- Sachsen
- Sacket
- Sackett