- Rabasca
- Rabon
- Raby
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- Racker
- Rader
- Radford
- Radosavljevic
- Raffety
- Rafter
- Ragan
- Ragland
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- Railsback
- Rainbolt
- Raines
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- Raleigh
- Ralston
- Ramage
- Ramirez
- Ramos
- Ramsaur
- Ramsey
- Randall
- Randle
- Randolph
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- Ransom
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- Raskin
- Rathman
- Ratliff
- Ratterree
- Raulston
- Rawlings
- Rawls
- Ray
- Rayborn
- Raybourn
- Raymer
- Raynor
- Rea
- Reagan
- Reagon
- Reardon
- Reasonover
- Reasor
- Reaves
- Rector
- Redden
- Rediker
- Redkevitch
- Redman
- Redmond
- Reed
- Reeder
- Reese
- Reesor
- Reeves
- Regan
- Regen
- Regensburg
- Regg
- Rehder
- Reichley
- Reid
- Reilley
- Reilly
- Reimels
- Reinert
- Reinfeld
- Reinheimer
- Reist
- Rembert
- Remer
- Renaldi
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- Repp
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- Ricci
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- Richardson
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- Ridge
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- Ridley
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- Rigali
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- Riggs
- Riley
- Riner
- Ringemann
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- Ripani
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- Risinger
- Rister
- Ritchie
- Ritoch
- Ritter
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- Rivet
- Roark
- Robb
- Robbins
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- Roberts
- Robertson
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- Robin
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- Rochell
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- Rodriguez
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- Rolman
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- Rolwing
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- Rose
- Rosemergy
- Rosen
- Rosenberg
- Rosenbloom
- Rosenblum
- Rosenfeld
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- Roskilly
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- Rotenberry
- Roth
- Rothberg
- Rounds
- Rowe
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- Royal
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- Rucker
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- Ruff
- Rungsakul
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- Rush
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- Rushton
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- Russell
- Rust
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- Ryan
- Rymer