Young dog or victory of the people
As a variation of Colin, it has two distinct roots: the Gaelic 'cuilean' meaning 'whelp' or 'young dog,' and the Greek 'Nikolaos' meaning 'victory of the people.' The 'y' spelling is a modern stylistic choice often used to make the name appear more gender-neutral or unique.
Less common today
Collyn isn't in the latest US Top 1000. It last peaked at #2,229 in 1999.
US births per 5-year period, 1990βpresent (SSA data).