Josslyn

Josslyn may refer to:


 * Josslyn Hay, 22nd Earl of Erroll (1901-1941) British peer
 * Josslyn Francis Pennington, 5th Baron Muncaster (1834-1917) British politician
 * Josslyn Island Site, archaeological site composed of a shell mound in Lee County, Florida
 * "Josslyn", a 2020 song by American singer-songwriter Olivia O'Brien