- Raborn
- Racop
- Ragan
- Ragland
- Ragsdill
- Rail
- Raines
- Rains
- Raley
- Ramsey
- Randall
- Randle
- Raney
- Ransom
- Raper
- Rasco
- Ratcliff
- Rather
- Rawls
- Ray
- Rayder
- Razer
- Reaves
- Rechtin
- Rector
- Red
- Redd
- Reddick
- Reddin
- Redditt
- Reddix
- Reece
- Reed
- Reep
- Reha
- Reichert
- Reichstadt
- Reid
- Reiter
- Reppond
- Retzloff
- Reyes
- Reynolds
- Rhodes
- Rice
- Rich
- Richard
- Richardson
- Richesin
- Rickels
- Riddling
- Ridgle
- Ridout
- Rieve
- Riggan
- Riggs
- Riley
- Rimer
- Rinehart
- Ring
- Rinke
- Ripley
- Riser
- Risinger
- Rittelmeyer
- Roach
- Robbecke
- Robbins
- Roberson
- Robert
- Roberts
- Robertson
- Robinette
- Robins
- Robinson
- Rochelle
- Rodgers
- Rogers
- Roland
- Rollans
- Rollefson
- Roller
- Rollins
- Romano
- Ronnel
- Rose
- Rosenblum
- Rosenow
- Ross
- Rossi
- Rousseau
- Roussel
- Routh
- Rowe
- Rowland
- Roy
- Royer
- Ruff
- Rummel
- Rummell
- Runion
- Russ
- Russell
- Russenberger
- Rust
- Rutherford
- Ryall
- Ryan