'''Chaotianmen''' ([[mandarinski]]: ''朝天门长江大桥'') je [[most]] koji na rijekama [[Yangtze]] i [[Jialing]] u [[Kina|kineskoj]] pokrajini [[Chongqing]]. Most je građen od prosinacprosinca [[2004.]] do 29. travnja 2009. godine.<ref>CulturalChina.com, [http://news.cultural-china.com/20090430100912.html Chongqing completes world's longest arch bridge], April 30, 2009.</ref> Poznat je po tome što je most sa najvećim lukom na svijetu od 552 metra što je dva metra više od mosta [[Lupu (most)|Lupu]], dug je 1741 metar.<ref>Xue-wei DUAN, [http://www.arch-bridges.cn/conf2008/pdf/409.pdf Design of Main Bridge of Chaotianmen Yangtze River Bridge], Chinese-Croation Colloquium on Long Arch Bridges, Croatian University of Zagreb and University of FuZhou, 2008.</ref> <ref>RIA 1/2007, [http://koti.kontu.la/jvirola/ria-chaotianmen.pdf Chaotianmen Bridge - world's longest-span steel arch bridge]</ref>