- Croad
- Croak
- Croake
- Croaker
- Croal
- Croan
- Croasdaile
- Croasdale
- Crobu
- Croc
- Crocco
- Croce
- Crocetta
- Crochet
- Croci
- Crociani
- Crocioni
- Crock
- Crockatt
- Crocken
- Crocker
- Crocket
- Crockett
- Crockford
- Crockley
- Crockwell
- Crocombe
- Croes
- Croeser
- Crofford
- Croft
- Crofton
- Crofts
- Crogan
- Croghan
- Crognale
- Crohan
- Crohin
- Crohn
- Croin
- Croisette
- Croisier
- Croissant
- Croix
- Croizat
- Croke
- Croker
- Crokey
- Crole
- Croley
- Croll
- Crolla
- Crolley
- Crollman
- Crolly
- Croly
- Cromack
- Croman
- Cromar
- Cromartie
- Cromarty
- Cromb
- Crombez
- Crombleholme
- Crome
- Cromer
- Cromey
- Cromley
- Crommelin
- Crompton
- Cromwell
- Cron
- Cronan
- Cronberg
- Cronchey
- Crone
- Croneen
- Cronen
- Croner
- Croney
- Cronheim
- Cronick
- Cronin
- Cronje
- Cronk
- Cronkrite
- Cronkshaw
- Cronley
- Cronon
- Cronquist
- Cronshaw
- Cronwell
- Cronyn
- Croock
- Crook
- Crookall
- Crooke
- Crookendale
- Crookes
- Crookham
- Crooks
- Crookshank
- Crookshanks
- Crookston
- Croom
- Croome
- Croon
- Croos
- Croose
- Croot
- Croote
- Crop
- Cropley
- Cropp
- Cropper
- Cropton
- Croques
- Croquet
- Crory
- Cros
- Crosa
- Crosara
- Crosbie
- Crosby
- Crosdale
- Crose
- Croser
- Crosfield
- Crosgrove
- Croshaw
- Crosier
- Crosio
- Crosland
- Crosley
- Crosman
- Crosnier
- Crosoer
- Croson
- Cross
- Crossa
- Crossan
- Crossby
- Crosscombe
- Crossdale
- Crosse
- Crossen
- Crosser
- Crossett
- Crossey
- Crossfield
- Crossgrove
- Crossin
- Crossing
- Crossingham
- Crosskell
- Crosskill
- Crossland
- Crossley
- Crossman
- Crosson
- Crossthwaite
- Crosston
- Crosswaite
- Crosswell
- Crosta
- Crosthwait
- Crosthwaite
- Croston
- Croswell
- Crosweller
- Crotch
- Croteau
- Crother
- Crothers
- Croton
- Crott
- Crotti
- Crotty
- Crotwell
- Crouch
- Crouche
- Croucher
- Crouchman
- Croudace
- Crough
- Crous
- Crouse
- Crousse
- Crout
- Croutear
- Crouter
- Crouther
- Crouthers
- Crouzet
- Crova
- Crovato
- Crovella
- Crovetto
- Crow
- Crowch
- Crowcher
- Crowcombe
- Crowcroft
- Crowden
- Crowder
- Crowdy
- Crowe
- Crowell
- Crower
- Crowest
- Crowford
- Crowhurst
- Crowl
- Crowle
- Crowley
- Crowne
- Crowner
- Crownshaw
- Crowson
- Crowston
- Crowter
- Crowther
- Crowthers
- Croxall
- Croxen
- Croxford
- Croxley
- Croxon
- Croxton
- Croy
- Croyden
- Croydon
- Croyle
- Croysdale
- Crozat
- Croze
- Crozer
- Crozet
- Crozier