Hameln vs Hamelin

Hameln and Hamelin both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hameln	Yes	No	No	No
Hamelin	Yes	No	No	No

As nouns, Hameln and Hamelin are synonyms defined as:

Hameln and Hamelin: a town in northern Germany (near Hanover) that is famous as the setting for the legend of the Pied Piper

Hameln (noun)	Hamelin (noun)
a town in northern Germany (near Hanover) that is famous as the setting for the legend of the Pied Piper	a town in northern Germany (near Hanover) that is famous as the setting for the legend of the Pied Piper