Justin History, Family Crest & Coats of Arms
As early as c. 1172, this name was used by judicial officers or judges and it is from this source the surname was more than likely derived. While there may have been Norman roots at La Justice in Normandy, the name was more likely an occupational name for someone who held the office of "the justice," in other words a judge.
Saint Justus (d. 627), was the fourth Archbishop of Canterbury, sent in 601 from Rome by Pope Gregory along with Laurentius, Mellitus, and others to reinforce the Kentish mission. Justus died on 10 Nov. 627, and was buried in St. Peter's porch at St. Augustine's, Canterbury. 
Early Origins of the Justin family
The surname Justin was first found in Perthshire (Gaelic: Siorrachd Pheairt) former county in the present day Council Area of Perth and Kinross, located in central Scotland, and Angus where one of the first records of the name was Patrick Justyce as a tenant of the mill at Kelso in 1472. Just two years later, Patrick Justice, a priest who witnessed an instrument of sasine in this shire in 1474. As the forename Patrick was not very popular at this time, these two references may be the same person. The lands of James Justeis and Thomas Justeis are mentioned in Scone in 1491. 
Early History of the Justin family
This web page shows only a small excerpt of our Justin research. Another 91 words (6 lines of text) covering the years 1400, 1450, 1600, 1567 and 1673 are included under the topic Early Justin History in all our PDF Extended History products and printed products wherever possible.
Justin Spelling Variations
Spelling variations of this family name include: Justice, Justine, Justus and others.
Early Notables of the Justin family (pre 1700)
More information is included under the topic Early Justin Notables in all our PDF Extended History products and printed products wherever possible.
In the United States, the name Justin is the 12,812nd most popular surname with an estimated 2,487 people with that name.  However, in France, the name Justin is ranked the 4,855th most popular surname with an estimated 1,500 - 2,000 people with that name. 
Some of the first settlers of this family name were:
Justin Settlers in United States in the 19th Century
The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.
Motto: Non sine causa
Motto Translation: Not without a cause.