Cognomen Joslyn (Joslyn 
, جوسلين 
, ג'וסלין 
) , globally, is quite a rare family name. The last name Joslyn is characteristic of the United States, where it is a rare surname, Jamaica, and Honduras. Not in comparison with a country's population, it is commonest in the United States, the United Kingdom, and Australia. More prevalently, Joslyn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Joslyn | India, United Kingdom, United States, South Africa, Democratic Republic of the Congo |
| جوسلين | Syria, Lebanon, Iraq, Jordan, Palestinian Territory |
| ג'וסלין | Israel |
| hezekiah joslyn American physician and abolitionist (1797-1865) (b. 1797) |
|
|
|
allyn joslyn actor, US (b. 1901) |
|
|
william g. joslyn American Major General (1922-2011), US (b. 1922) |
|
| marcellus l. joslyn American philanthropist, US (b. 1873) |
|
|
| harold waddell joslyn Canadian airman, CA (b. 1893) |
|
|
| evelyn p. joslyn (b. 1889) |
|
|
|
betsy joslyn American actress, US (b. 1954) |
|
|
cliff joslyn American scientist (b. 1963) |
|
| roger joslyn English professional footballer (born 1950), GB (b. 1950) |
|
|
| roger d. joslyn genealogist |
|
|
| louis r joslyn researcher (ORCID 0000-0002-7260-6568) |
|
|
| cliff a joslyn researcher |
|
|
| benjamin f joslyn Gunsmith |
|
|
| stephen k joslyn researcher |
|
|
| andrew joslyn American composer |
|