The name Joslyn is a girl's name . Joslyn is ranked #926 on our popularity charts and is often added to user-created lists like America's Next Top Model Names and discussed in our forums with posts like "Themed Families..".
From the experts:
Much lower on the US Top 1000 list than the original spelling of Jocelyn. While it might be tempting to go with this more phonetic spelling, we recommend sticking with the traditional name.