Hay meadow or lake of hay
Haylin is a modern English compound name, likely derived from the Old English elements 'heg' (hay) and 'hlinc' (ridge) or 'lyn' (lake). It follows the popular trend of combining nature-inspired prefixes with the 'lyn' suffix. While its roots are traditional, this specific combination is a contemporary creation.
Less common today
Haylin isn't in the latest US Top 1000. It last peaked at #5,073 in 2009.
US births per 5-year period, 1990βpresent (SSA data).