Ista

Ista may refer to:

• Ernest Ista (1877–unknown), Belgian sports shooter, competitor at the 1908 Summer Olympics
• Kevyn Ista (born 1984), Belgian road bicycle racer
• Instituto Santo Tomás de Aquino (fundação 1987), Faculdade de Teologia e Filosofia, Belo Horizonte, Minas Gerais, Brasil.
• -ista (suffix), a suffix used in Romance languages and occasionally in English
• Ista (Bangladesh), a place in the Jessore District, Khulna Division of Bangladesh
• the heroine of Paladin of Souls, a novel by Lois McMaster Bujold

ISTA or Ista may also refer to:

• Institute of Science and Technology Austria, a research institution in Austria
• International Safe Transit Association, a global organization that writes test procedures for performance package testing
• International School of Temple Arts, an organization promoting alternative sex practices based on Western readings of tantra and shamanism
• International School of Theatre Anthropology (since 1979), based in the Odin Teatret, Denmark
• Internet Sacred Text Archive (since 1999), archive of cultural public domain texts
• Indiana State Teachers Association, in Indiana
• International Schools Theatre Association, based in the UK, networked in schools such as The British School, New Delhi or Koç School
• International Society for Technology Assessment, related to Bryan Jennett, Fred Polak
• Ista Pharmaceuticals or ISTA Pharmaceuticals, related to Calvin A. Grant, Hyaluronidase
• International School of Traditional Aikido an Aikido organisation founded in France.
• International Seed Testing Association, an international non-profit seed testing organization