Blue lotus

Blue lotus may refer to:


 * Nymphaea caerulea, a water lily in the genus Nymphaea that was known to the Ancient Egyptian civilizations
 * Nymphaea nouchali, a water lily of genus Nymphaea that is native to southern and eastern parts of Asia, containing the sedating alkaloids apomorphine and nuciferine
 * The Blue Lotus, a 1936 book in the Tintin series