Modern invented name, possibly meaning house or lake
Tylyn is a contemporary American coinage, likely created by blending the popular prefix 'Ty-' with the suffix '-lyn'. It may be influenced by the Welsh word 'ty' meaning house or the English surname Tyler, combined with the common name element Lynn, which refers to a lake or pool.
Less common today
Tylyn isn't in the latest US Top 1000. It last peaked at #2,673 in 1993.
US births per 5-year period, 1990βpresent (SSA data).