What We Know About the Joslyn Surname

The Joslyn last name has English roots. In Elsdon Smith's reading, the name described “descendant of Jocelyn or Joscelin (the just)”.

• Related forms include Joslin, Jocelyn, Joslun and Josslin.
• The 2010 census count for Joslyn in the United States was 2,581, good for rank 12,079. It sits among the 25,000 most common last names in the country.
• It is a patronymic: it named a person after a father or forebear.

Family crest and blazon

Coats of arms were borne by individual families. If arms are recorded under the Joslyn name, our researchers explain whose they were and how they were blazoned. Want more than a summary? See the Joslyn family name pack.