Red seaweed
Dulse is a botanical name referring to a nutrient-rich red alga found along the northern coasts of the Atlantic and Pacific oceans. As a given name, it is an extremely rare nature-inspired choice that aligns with the trend of using unique flora and coastal elements for names.
Less common today
Dulse isn't in the latest US Top 1000. It last peaked at #6,221 in 1993.
US births per 5-year period, 1990βpresent (SSA data).