IRAS (disambiguation) Look up iras, irás, or írás in Wiktionary, the free dictionary. IRAS may refer to: Indian Railway Accounts Service Infrared Astronomical Satellite Inland Revenue Authority of Singapore Iras, a character in Antony and Cleopatra; see List of Shakespearean characters See also[edit] IRA (disambiguation) Topics referred to by the same term This disambiguation page lists articles associated with the title IRAS.If an internal link led you here, you may wish to change the link to point directly to the intended article.