Irrawaddy or Ayeyarwady may refer to:

Irrawaddy River, the main river of Myanmar (Burma) Irrawaddy Delta, a rice growing region of Myanmar Irrawaddy, an alternative spelling of Ayeyarwady Region, an administrative division of Myanmar The Irrawaddy, a Burmese news publication based in Chiang Mai, Thailand Irrawaddy dolphin, a dolphin which is found in the Irrawaddy River "Waters of Irrawaddy", the first song in Beyond Rangoon (soundtrack), composed by Hans Zimmer Irrawaddy Green Towers, a mobile phone tower company which works for the military joint venture Mytel The star HD 18742, also named Ayeyarwady

See also Iravati River (disambiguation), alternative form of the river's name Iravati, a character in Hindu mythology, mother of the elephant Airavata