Iota (disambiguation)

Iota (Ι, ι) is the ninth letter of the Greek alphabet.

Iota or IOTA may also refer to:

Letters and scripts

 * Ɩ or Latin iota, a letter of the Latin alphabet
 * Iota (Cyrillic) (Ꙇ, ꙇ), a letter of the Cyrillic alphabet

Science and technology

 * Infrared Optical Telescope Array
 * Integrable Optics Test Accelerator — electron and proton low energy storage ring and test facility at Fermilab
 * Iota toxin, a type of pore-forming toxin that acts to destroy the actin cytoskeleton.
 * International Occultation Timing Association
 * SARS-CoV-2 Iota variant, a variant of SARS-CoV-2, the virus that causes COVID-19

Mathematics

 * Denoted by i, the Imaginary unit in the complex number system.

Computing

 * ιn, a function generating a vector of every integer from 0 to n-1 (index origin zero) in APL
 * Iota and Jot, two esoteric programming languages
 * IOTA (technology), open-source distributed ledger (directed acyclic graph or DAG, a blockchain alternative)

Organizations

 * International Ovarian Tumor Analysis trial and group, founded to develop standardized terminology
 * Intra-European Organisation of Tax Administrations

Arts and entertainment

 * Iota, a superhero in the comic book Heroes
 * Colony Iota, a location in Xenoblade Chronicles 3
 * Iota (singer), Australian singer and actor, born Sean Hape
 * Iota, a syndicated newspaper comic strip by Mike Keefe and Tim Menees
 * Iota, 2022 album by Lous and the Yakuza

Other uses

 * Iota, Louisiana, a town in the US
 * Iota (Italian ship), a vessel from the port of Naples, wrecked in December 1893
 * Islands on the air (IOTA), a list of islands maintained by the Radio Society of Great Britain
 * Hurricane Iota, a late-season Category 4 Atlantic hurricane in 2020