- Rabedeau
- Raber
- Racanelli
- Raczek
- Rader
- Raghu
- Raghunath
- Ragsdale
- Rahman
- Ram
- Ramam
- Ramelli
- Ramey
- Ramie
- Ramin
- Ramirez
- Ramos
- Rampelberg
- Ramsden
- Ramsey
- Ramskov
- Ramsour
- Ramstad
- Randall
- Randazzo
- Randev
- Randolph
- Rao
- Rasch
- Rashedi
- Rastrullo
- Rathbun
- Ratica
- Raudes
- Ravenscroft
- Ravera
- Ravi
- Ravizza
- Ravuri
- Ray
- Raymons
- Raynal
- Realon
- Rearick
- Rebello
- Recchio
- Red
- Reda
- Redmond
- Reece
- Reed
- Reeder
- Reek
- Reese
- Regalado
- Regalia
- Reguerin
- Reidenbach
- Reiling
- Reininger
- Reis
- Reiser
- Reisner
- Reiswig
- Reitinger
- Relger
- Relth
- Remaker
- Remedios
- Remenyik
- Remmel
- Rene
- Reneau
- Renfro
- Renfrow
- Renna
- Reno
- Rentar
- Renzel
- Resch
- Reuck
- Reutter
- Revers
- Rey
- Reyes
- Reyna
- Reynolds
- Reza
- Rezvani
- Rhinehart
- Rhoads
- Rhodes
- Ribeiro
- Rice
- Richard
- Richards
- Richardson
- Richert
- Richie
- Rider
- Ridgeway
- Righetti
- Rinerson
- Rines
- Ringheden
- Rios
- Ristow
- Rittenhouse
- Ritter
- Rivas
- Rivera
- Rivers
- Rivkin
- Rix
- Rizvi
- Rizzi
- Roach
- Robb
- Robbie
- Roberts
- Robertson
- Robinson
- Robledo
- Robles
- Robson
- Roby
- Roccho
- Rochette
- Rochin
- Rodgers
- Rodman
- Rodriguez
- Rodriquez
- Roe
- Roedel
- Roennmann
- Roessler
- Roggenbuck
- Rohr
- Rojas
- Roldan
- Roll
- Rolla
- Rollins
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- Romano
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- Romito
- Romney
- Romo
- Rondone
- Rood
- Root
- Roque
- Rosa
- Rosales
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- Rosbrugh
- Rose
- Rosecrans
- Rosenberg
- Rosenblum
- Rosenthal
- Roshau
- Ross
- Rosselott
- Rossi
- Rostege
- Roszkowski
- Rothwein
- Rountree
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- Rowe
- Roy
- Ruan
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- Rudikov
- Rudisill
- Rudzinski
- Rufo
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- Ruggiero
- Ruiz
- Ruschin
- Russek
- Russell
- Russo
- Rust
- Rustamzadeh
- Ruyf
- Ryan
- Ryder
- Ryou
- Ryser