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Worldwide, ลูกจันทร์ (ลูกจันทร์ , Lukjan , Lukchan ) is quite a rare largely feminine, but seldom masculine given name. The forename ลูกจันทร์ is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare dominantly female, but infrequently masculine name. Much less frequently, ลูกจันทร์ is the last name as well as the forename.
ลูกจันทร์ is also a name for the fictitious and mythical characters: Lukjan Timofejewitsch Lebedjew , the operatic character in the opera Der Idiot (Weinberg), The Idiot.