Y
- Youngcalhoun
- Youngcarmona
- Youngcarney
- Youngcellilo
- Youngcharlton
- Youngchavez
- Youngchua
- Youngchung
- Youngclark
- Youngclarke
- Youngclaus
- Youngclavet
- Youngcoles
- Youngcollie
- Youngconnor
- Youngcook
- Youngcunning
- Youngcushing
- Youngdahl
- Youngdale
- Youngdavis
- Youngdelgado
- Youngdennison
- Youngdevin
- Youngdietle
- Youngdoff
- Youngdog
- Youngdonald
- Youngdonhar
- Youngdoyle
- Youngdunan
- Younge
- Youngeagleh
- Youngeaster
- Youngel
- Younger
- Youngercalderon
- Youngerman
- Youngern
- Youngerperalta
- Youngers
- Youngervince
- Youngervincent
- Youngeun
- Youngeunlee
- Youngfellow
- Youngfisher
- Youngflesh
- Youngfoster
- Younggaines
- Younggains
- Younggale
- Youngganzert
- Younggau
- Youngglenn
- Younggolab
- Younggreen
- Younggren
- Younggrillo
- Younggrimes
- Younggrogan
- Younggumero
- Younghalldorson
- Youngham
- Younghampton
- Younghang
- Younghans
- Younghanse
- Younghanz
- Youngharmon
- Youngharper
- Youngharris
- Younghaus
- Younghayes
- Younghebert
- Youngheim
- Younghein
- Younghernand
- Youngherring
- Younghersh
- Younghill
- Youngholler
- Younghoon
- Younghorse
- Younghusban
- Younghusband
- Younghwa
- Youngismail
- Youngjefferson
- Youngjohn
- Youngjohnson
- Youngjones
- Youngjustice
- Youngkamp
- Youngkeit
- Youngkemp
- Youngken
- Youngker
- Youngkin
- Youngkingston
- Youngkissinger
- Youngklein
- Youngkrantz
- Youngkry
- Younglai
- Younglampkin
- Younglawrence
- Younglee
- Youngless
- Younglewis
- Younglibby
- Youngling
- Younglombardi
- Younglopez
- Younglove
- Younglozano
- Younglucas
- Younglund
- Youngmah
- Youngman
- Youngmanmadsen
- Youngmann
- Youngmanping
- Youngmanyoupee
- Youngmarchbanks