Combination of My and Lynn; beloved lake
Mylynn is a modern American compound name. It combines 'My', which can be a diminutive of names like Myra or a Vietnamese name meaning 'pretty', with the suffix 'Lynn', derived from the Welsh word for lake.
Less common today
Mylynn isn't in the latest US Top 1000. It last peaked at #7,640 in 2017.
US births per 5-year period, 1990βpresent (SSA data).