Jarmain
Jaroslavic
Jarred
Jarrett
Jarvins
Jarvis
Jay
Jeffers
Jefferson
Jeffries
Jenkes
Jenkins
Jenks
Jennet
Jennings
Jennison
Jerks
Jessup
Jewell
Jewell or Jewett
Jewett
Jimenez
Jividen
Jocelyn
John
Johns
Johnson
Johnston
Johnstoun
Joinville
Jolls
Jones
Jordain
Jordan
Jordon
Joseph
Joslin
Jouett
Joy
Joyce
Judd
Judson
Julich
Jung
Jutland
Juxon
Kaa
Kaffer
Kagi
Kane
Karickhoff
Karns
Karnten
Kayser
Kearn
Kearns
Keaton
Kedall or Kendall or Kettle
Kee
Keen
Keene
Keep
Keesucker
Keicher
Keister
Keith
Keller
Kellet
Kelley
Kellogg
Kelly
Kelsey
Kelso
Kempe
Kemper
Kempton
Kendal
Kendall
Kendrick