Short land or court land
A modern American invention likely combining the surname-derived 'Courtland' with the popular feminine suffix '-lyn'. It may also be interpreted as a variation of Courtney, meaning 'short nose', or a blend of 'court' (enclosed space) and 'lyn' (lake).
Less common today
Cortlyn isn't in the latest US Top 1000. It last peaked at #6,024 in 1998.
US births per 5-year period, 1990βpresent (SSA data).