Gekkin (Chinese name: yueh-chin, yueqin; English name: moon guitar, moon-zither; and Vietnamese name: {-D}{a`}n nguy{e^.}t) is a traditional musical instrument in China, Japan and Vietnam.
月琴（げっきん、中国語名yueh-chin,yueqin、英語名moonguitar,moon-zither、ベトナム語名Đànnguyệt）は中国・日本・ベトナムの伝統楽器。