The Blue Lotus (French: Le Lotus bleu) is the fifth volume of The Adventures of Tintin, the comics series by Belgian cartoonist Hergé. Commissioned by the conservative Belgian newspaper Le Vingtième Siècle for its children's supplement Le Petit Vingtième, it was serialised weekly from August 1934 to October 1935 before being published in a collected volume by Casterman in 1936. Continuing where the plot of the previous story, Cigars of the Pharaoh, left off, the story tells of young Belgian reporter Tintin and his dog Snowy, who are invited to China in the middle of the 1931 Japanese invasion, where Tintin reveals the machinations of Japanese spies and uncovers a drug-smuggling ring.
In creating The Blue Lotus, Hergé exhibited a newfound emphasis on accuracy and documentation in his portrayal of foreign societies. He was heavily influenced by his close friend Zhang Chongren, a Chinese student studying in Belgium, and the work both satirises common European misconceptions about China as well as criticising the actions of the Japanese invaders. The Blue Lotus was a commercial success in Belgium and was soon serialised in France and Switzerland, while news of the book led the Chinese political leader Chiang Kai-shek to invite Hergé to visit China. Hergé continued The Adventures of Tintin with The Broken Ear, while the series itself became a defining part of the Franco-Belgian comics tradition. In 1946, The Blue Lotus was partially re-drawn and coloured by the cartoonist and his team of assistants; during this process a number of minor plot elements were changed. The adventure introduces the recurring characters J.M. Dawson and Chang Chong-Chen. The story was adapted for a 1991 episode of the Ellipse/Nelvana animated series The Adventures of Tintin. Critical analysis of the story has been positive, with various commentators considering it to be one of Hergé's finest works.