GDA may refer to: Generic Design Assessment, UK assessment process for new nuclear reactor designs Global Development Alliance, a program of the United States Agency for International Development GNU Data Access, a software API specification Golden Disc Awards, an annual South Korean major music awards ceremony Gounda Airport, in the Central African Republic Grand Democratic Alliance, a political alliance in Pakistan Greater Dublin Area, a region of Ireland Grupo de Diarios América, an international trade organization Guideline Daily Amount in the United Kingdom Gwadar Development Authority, in Gwadar, Pakistan GDA (gene), which encodes the enzyme guanine deaminase