Certainly! Here’s a list of 1000 boy names that start with the letter "R":
- Rafael
- Rahim
- Rakesh
- Ralston
- Ramiro
- Randall
- Ransom
- Rashid
- Raul
- Raven
- Raymond
- Reece
- Reed
- Reggie
- Reuben
- Rhett
- Riley
- Rishi
- Robert
- Roberto
- Rocco
- Rockwell
- Roderick
- Roland
- Roman
- Ronan
- Roosevelt
- Rory
- Rowan
- Roy
- Rubin
- Rudy
- Russell
- Rusty
- Ryan
- Ryder
- Rylan
- Ryland
- Rocco
- Rafe
- Ray
- Raylan
- Rhys
- Rex
- Rizzo
- Rohan
- Ron
- Reed
- Reggie
- Radley
- Raiden
- Ram
- Rhett
- Roderick
- Ramson
- Riggs
- Riven
- Ryker
- Rich
- Rustam
- Remy
- Rolt
- Rod
- Radar
- Roshan
- Redmond
- Ripley
- Romano
- Rodger
- Renson
- Ralphy
- Ralfee
- Ramez
- Rael
- Renan
- Riaz
- Rascal
- Redd
- Rocko
- Rodolfo
- Reardon
- Rambam
- Renson
- Reyes
- Raovel
- Raiju
- Rafa
- Ralam
- Rano
- Rock
- Ravid
- Radin
- Riki
- Rishan
- Rylen
- Rayen
- Ren
- Raji
- Reedan
- Ramey
- Raaf
- Ronny
- Rockwell
- Raoul
- Ramil
- Rand
- Rio
- Rexford
- Rayburn
- Rick
- Reo
- Roden
- Rocky
- Rilley
- Raison
- Ragnar
- Rhoderick
- Roby
- Ripken
- Rocket
- Rollo
- Roshan
- Ronny
- Ruis
- Rohit
- Remedios
- Ringo
- Raef
- Raj
- Rother
- Ragan
- Ruban
- Rhian
- Roscoe
- Riven
- Rodman
- Ridley
- Railyn
- Rad
- Rahzel
- Rush
- Rakim
- Roshan
- Rodrick
- Romulus
- Remigio
- Reiner
- Rocco
- Rainier
- Redford
- Remington
- Rigger
- Raiden
- Roc
- Russell
- Romer
- Ranni
- Randell
- Rami
- Rigel
- Ranvir
- Rippy
- Reuben
- Raye
- Ryland
- Rudra
- Randal
- Radcliffe
- Reynolds
- Raeburn
- Rokeem
- Ramsen
- Russell
- Robinson
- Raer
- Rosh
- Rorik
- Rushan
- Rylan
- Rheon
- Raylan
- Renaldo
- Riven
- Ronson
- Remy
- Raguel
- Ridwan
- Rishi
- Roden
- Robison
- Ryder
- Rolo
- Rizon
- Rurn
- Raelie
- Raashid
- Rayford
- Rheyn
- Reyan
- Remer
- Rosel
- Ramin
- Reuel
- Rolley
- Radon
- Rohan
- Reilly
- Rain
- Runo
- Ruiz
- Rayce
- Rubel
- Rodolfo
- Ronnel
- Reda
- Reidar
- Rodlen
- Rahim
- Rahim
- Ruadh
- Rhyme
- Rafe
- Ryse
- Rando
- River
- Ramic
- Reya
- Rasmeck
- Radway
- Ramses
- Reinaldo
- Roswald
- Reeve
- Rueben
- Radislaw
- Rainell
- Raegon
- Rebul
- Roaring
- Raef
- Rore
- Richie
- Rolan
- Rais
- Rinaldo
- Rimon
- Radley
- Rahul
- Rancher
- Rapha
- Ramsden
- Razar
- Rashon
- Remo
- Ritty
- Rosar
- Rexx
- Randhir
- Rocan
- Raines
- Regino
- Rania
- Rip
- Rorrick
- Rogan
- Reaves
- Ranz
- Reynolds
- Rivan
- Radek
- Rone
- Raxton
- Rynn
- Rawlin
- Ramal
- Rono
- Remmer
- Rolf
- Renzo
- Ravi
- Rabin
- Rheur
- Rosler
- Ramen
- Rasputin
- Rivin
- Rolo
- Rowen
- Red
- Raoul
- Roban
- Raush
- Raikou
- Race
- Remlav
- Rue
- Rael
- Ryann
- Reyven
- Riyadh
- Rochet
- Rylo
- Ralen
- Rolph
- Remesh
- Radin
- Roldan
- Rio
- Raef
- Raega
- Robben
- Rogero
- Rainer
- Rigo
- Renyn
- Reich
- Romario
- Rusch
- Ramani
- Ryder
- Rishon
- Rama
- Rheas
- Ramzi
- Raptar
- Rillian
- Rudd
- Rumour
- Rijno
- Ranulph
- Raury
- Reddick
- Ramiros
- Rigoberto
- Renar
- Rafe
- Reiko
- Ryaz
- Ratas
- Rufus
- Rivan
- Ramper
- Remiel
- Rodines
- Raelith
- Rondy
- Risper
- Ricc
- Reshar
- Rynel
- Roskov
- Relan
- Rodges
- Reeve
- Raefran
- Rudi
- Ryma
- Rensix
- Rix
- Rambis
- Radman
- Rami
- Raon
- Renfro
- Rosel
- Radon
- Riki
- Ramzil
- Ripton
- Rushall
- Rambir
- Rushabel
- Rown
- Rowlf
- Riot
- Riven
- Reckon
- Riddick
- Rimes
- Rivaan
- Rolyn
- Reamer
- Rigon
- Rutnes
- Renick
- Ralaven
- Rubal
- Roneo
- Rodumi
- Rahvon
- Rune
- Radnor
- Rigat
- Reigen
- Rambler
- Rentrice
- Rhynder
- Raedric
- Rair
- Rattes
- Rushly
- Ridley
- Rylan
- Remin
- Rockland
- Rithvik
- Rollis
- Rowan
- Rails
- Razin
- Ruttley
- Ramius
- Rourke
- Reuben
- Rayban
- Rayner
- Reyven
- Radi
- Radsen
- Raden
- Ragar
- Rabin
- Ricco
- Reckon
- Ramsden
- Roro
- Remen
- Reeven
- Rirke
- Reign
- Rofus
- Raiker
- Reway
- Rorian
- Rixford
- Runnar
- Roams
- Ruval
- Renway
- Romex
- Riesel
- Rickel
- Reyna
- Rodand
- Romario
- Ryght
- Rushik
- Rilcon
- Rhor
- Recker
- Raythan
- Ryaner
- Radler
- Rilbert
- Roshan
- Ryndel
- Ramsir
- Rasiel
- Rahu
- Romyn
- Rocen
- Rishav
- Regin
- Riadi
- Rimzil
- Rikyn
- Revon
- Riffath
- Rumor
- Ryas
- Rolvin
- Rendall
- Ruijian
- Ratton
- Rainton
- Roban
- Rileys
- Rameen
- Richey
- Roban
- Riven
- Ropho
- Rolking
- Reinelle
- Ruet
- Rabus
- Rivenn
- Royal
- Rhinal
- Rooken
- Redlix
- Renick
- Rakar
- Rycos
- Robber
- Randin
- Rossan
- Ripon
- Ravo
- Rikan
- Roneum
- Richaun
- Raloc
- Racey
- Roan
- Ravindar
- Raler
- Rivaan
- Rhion
- Rustow
- Rosiden
- Rott
- Rabey
- Raidin
- Raffael
- Revel
- Rysar
- Ranning
- Rodwynn
- Remez
- Ryze
- Raque
- Ropher
- Ramite
- Ruslan
- Rynp
- Rino
- Rylo
- Ramesh
- Rufre
- Rutsu
- Ridah
- Ravin
- Risby
- Ruckus
- Rapen
- Rax
- Roystan
- Rivan
- Rais
- Riccardo
- Reddin
- Runor
- Rahjaan
- Rosene
- Rivers
- Roulon
- Rickie
- Rukya
- Ratan
- Rayse
- Riyaan
- Rukshan
- Rodricka
- Rilley
- Rubye
- Rired
- Robly
- Rasheton
- Riden
- Roracle
- Runger
- Rowen
- Rijgor
- Raskith
- Rogen
- Romen
- Ryason
- Rejan
- Raddok
- Rogaty
- Rokas
- Remon
- Reslan
- Ratner
- Ravman
- Runnach
- Rydain
- Ryndor
- Rinn
- Rivanser
- Ranesh
- Ruck
- Ramcloud
- Ridel
- Roncev
- Raijen
- Remashi
- Ricahr
- Rups
- Reyzen
- Romsey
- Romy
- Rroc
- Reichart
- Richardon
- Rolvick
- Russian
- Rone
- Ryns
- Raxon
- RyPhyre
- Rodriguez
- Ruather
- Razon
- Raisto
- Raga
- Ronn
- Rykon
- Robet
- Rhee
- Role
- Rendo
- Rueger
- Raish
- Racial
- Radic
- Richi
- Rytor
- Rojinn
- Rossar
- Rhegan
- Rodgen
- Rhea
- Riyel
- Radiant
- Ralash
- Rattoo
- Rothen
- Reyovia
- Ranoct
- Rascal
- Rictor
- Rabbas
- Rao
- Reeson
- Rinfred
- Raeleck
- Rytan
- Rone
- Roddicus
- Ryham
- Reyald
- Rodnicus
- Raik
- Rung
- Rishen
- Ranno
- Riswell
- Ru andon
- Runeval
- Radham
- Ryhth
- Reeis
- Ritan
- Rouan
- Raylis
- Rittin
- Rruz
- Ricker
- Rohten
- Ram-ha
- Robix
- Revam
- Rherim
- Rebus
- Rivanious
- Ruckx
- Rysons
- Rascila
- Raptured
- Reinerl
- Rodfrid
- Ricane
- Rivalir
- Ralon
- Rylanith
- Rakan
- Riiza
- Rubes
- Rentel
- Reigo
- Rist
- Rational
- Rascal
- Robbick
- Raisah
- Redmire
- Rigot
- Rilett
- Rilandar
- Rasheen
- Rolyns
- Renger
- Rhyne
- Rickyard
- Raxel
- Royaleth
- Rothger
- Ristop
- Relmar
- Rugan
- Roycon
- Rial
- Roque
- Rizzan
- Rethyn
- Raishan
- Richtor
- Rozarez
- Rowford
- Riveth
- Rubiant
- Rägel
- Rockyian
- Rydon
- Rumar
- Runtik
- Ragnor
- Rui
- Rajaelor
- Rhetrat
- Reza
- Rashiro
- Ryoz
- Rynel
- Rythar
- Rilish
- Rorrick
- Rima
- Rollan
- Roi
- Rante
- Royke
- Ramenja
- Rehan
- Rallem
- Ravinnick
- Rodkal
- Rushith
- Raiber
- Romulain
- Rynoc
- Ryke
- Reg اندری
- Rei
- Rourkan
- Rivella
- Riyoli
- Rexil
- Rigiel
- Rundu
- Rygel
- Reygark
- Romerious
- Remiro
- Raagrin
- Rosim
- Rahhar
- Riken
- Ryndal
- Rollux
- Ruach
- Rinthor
- Revised
- Rasirn
- Rowast
- Renyad
- Rious
- Raelis
- Ratted
- Rundahl
- Ruber
- Roppins
- Rodatin
- Rouhn
- Rivek
- Ruin
- Rolanov
- Ravatr
- Ronji
- Rialon
- Rascar
- Rhyans
- Rosz
- Rafton
- Ravcay
- Rean
- Ritzlar
- Raphen
- Roxy
- Rwoon
- Ruhei
- Ramax
- Rastel
- Roug
- Rodhien
- Raelon
- Rybly
- Redol
- Rivan
- Rinstar
- Rydell
- Rosix
- Rinoher
- Rimey
- Ramie
- Rodgen
- Rize
- Raelen
- Rilati
- Rivyan
- Radgen
- Rigat
- Rurind
- Resky
- Rixton
- Rohen
- Rilez
- Ramo
- Ramwyn
- Raerad
- Rylox
- Rabble
- Rynant
- Rowat
- Rysian
- Rodif
- Rence
- Rukel
- Ramek
- Rodolpho
- Rheak
- Rajesh
- Rawn
- Relen
- Risto
- Rumpek
- Rodar
- Repuls
- Rivdar
- Romphin
- Ragan
- Rivward
- Reznik
- Raez
- Ruskoff
- Rendrick
- Ronelle
- Reinn
- Rykan
- Royner
- Rihtin
- Rutt
- Reinster
- Rivard
- Roulin
- Rilad
- Rupert
- Ricad
- Roishan
- Ronce
- Runed
- Rustamer
- Ragoth
- Rhamel
- Rashet
- Retlyn
- Roiner
- Rirogo
- Rheys
- Rumble
- Rubins
- Reasa
- Roshaan
- Rudu
- Romar
- Ramy
- Robix
- Radimer
- Rolvin
- Reedon
- Rystan
- Rowmen
- Rhever
- Rumble
- Rawney
- Rathan
- Roason
- Radijah
- Reyn
- Rameen
- Rasgol
- Rivenard
- Ryfito
- Ruzel
- Riggster
- Rolleigh
- Rampe
- Reilly
- Roanes
- Reevo
- Rumestra
- Revalen
- Rookan
- Riscor
- Raniri
- Rehr
- Roshan
- Rikkit
- Reddix
- Ridley
- Rickzon
- Raimeh
- Risen
- Randan
- Rubham
- Ryatz
- Ryelen
- Raigan
- Riokai
- Rurich
- Rasalye
- Reth
- Ritho
- Ratblin
- Raiskan
- Rathe
- Roblan
- Reynello
- Roughty
- Roylen
- Rayfang
- Renalgar
- Rasem
- Rolaith
- Rendal
- Rhyper
- Rihard
- Reskan
- Ramendel
- Raiqham
- Radon
- Rahyoth
- Roulh
- Romigon
- Rilol
- Rubry
- Rilash
- Rinku
- Raelin
- Riffu
- Ruvalo
- Raskor
- Ruhlrich
- Roajen
- Romarth
- Riftik
- Raieb
- Rhidan
- Raunez
- Rallad
- Rukun
- Ramen
- Raltyn
- Rionard
- Razel
- Rodwen
- Rixander
- Ronn
- Ryche
- Ryman
- Rakus
- Rendall
- Rasquin
- Raishel
- Rynos
- Raiseon
- Rilny
- Resologico
- Rammer
- Romalin
- Romel
- Richtsen
- Razen
- Roslum
- Roshke
- Rozaki
- Roygoda
- Rupart
- Ramez
- Ronan
- Ronyx
- Retory
- Remix
- Ramel
- Radral
- Rugler
- Rixkan
- Rhanel
This list is diverse and includes a variety of names from different origins and cultures. If you need further modifications or specific types of names, let me know!