Andreas "Lalaith" Möhn (born 1964) is a German freelance writer and editor.
He has an on-line presence concerning the study of Tolkien's Arda by participating on the Tolklang and Tolkien Mailing Lists. His website, Lalaith's Science Pages, is centered on more obscure aspects of the legendarium and scientific reasoning on several information Tolkien gives out. His essays concern Mannish tongues, calendaric calculations, and various geographical topics of Arda.
In October 2014 some of the articles were removed from the site, and were updated and provided as purchaseable books.
- Middle-earth seen by the barbarians (2 volumes)
- The Moon in ‘The Hobbit’
- Words of Westernesse