ISDA may refer to: Independence of Smith-dominated alternatives, a voting system criterion. Indian Self-Determination and Education Assistance Act of 1975, a United States law Industrial Designers Society of America International Semiconductor Development Alliance, technology alliance between IBM, AMD/GlobalFoundries, Freescale, Infineon, NEC, Samsung, STMicroelectronics and Toshiba. International Swaps and Derivatives Association, trade organization of participants in the market for over-the-counter derivatives Irish Student Drama Association, association for intercollegiate competition in Irish amateur student theatre