Ida

• Ida (given name), including people so named
• Ida (surname), a list of people so named

• Ida Facula, a mountain on Amalthea, a moon of Jupiter
• 243 Ida, an asteroid
• International Docking Adapter, a docking adapter for the International Space Station

• Intel Dynamic Acceleration, a technology for increasing single-threaded performance on multi-core processors
• Interactive Disassembler (now IDA Pro), a popular software disassembler tool for reverse engineering
• Interactive Data Analysis, a software package for SPSS
• Interchange of Data across Administrations (IDA), a predecessor programme to the IDABC in European eGovernment

• ID:A, a 2011 Danish film
• Ida (film), a 2013 Polish film
• Ida Galaxy, a fictional galaxy in the Stargate TV series

• Ida (mother of Minos), daughter of Corybas, the wife of Lycastus king of Crete, and the mother of the "second" king Minos of Crete
• Ida (nurse of Zeus), who along with her sister Adrasteia, nursed Zeus on Crete
• Mount Ida, a sacred mountain

• Ida (band), a U.S. indie rock group
• Ida (singer), a Danish singer on X Factor

• In Defense of Animals, a non-profit organization for animal rights activism
• Indian Dental Association
• IDA Ireland, formerly the Industrial Development Authority
• Infocomm Development Authority of Singapore, a statutory board of the Singapore government
• Information Design Association
• {{lang|da|Ingeniørforeningen i Danmark}} or Danish Society of Engineers, an association for engineers and others in technology
• Institute for Defense Analyses, a U.S. non-profit corporation that administers three federally funded research and development centers
• International Dark-Sky Association, a U.S.-based non-profit organization
• International Depositary Authority, established by the Budapest Treaty for the deposit the biological material for the recognition of patents, such as the Microbial Culture Collection
• International Desalination Association, a global organization dedicated to desalination, desalination technology and water reuse
• International Development Association of the World Bank Group
• International Disability Alliance, an international alliance of individuals to defend the rights of those with disabilities
• International Dispensary Association Foundation a NGO dedicated to improving access to medications in the developing world
• International Documentary Association, a non-profit organization promoting documentary film, video and new media
• International Dyslexia Association, a non-profit education and advocacy organization
• Investment Dealers Association of Canada, now part of the Investment Industry Regulatory Organization of Canada
• Issues Deliberation Australia/America, a public policy think tank based in South Australia and Texas

• Ida Ridge, British Columbia, Canada
• Ida, a community in Cavan–Monaghan Township, Ontario, Canada
• Ida (barony), a barony in County Kilkenny, Ireland
• Ida, Nigeria, a railway station in Nigeria
• Ida (river), Slovakia
• Ida, Eastern Cape, a town in South Africa near Otto Du Plessis Pass
• Ida Valley, a locality in Central Otago, New Zealand
• Ida, Vologda Oblast, Russia
• Ida, Russia, a list of rural localities

• Ida, Arkansas, an unincorporated community
• Ida, Kentucky, an unincorporated community
• Ida, Louisiana, a village
• Ida County, Iowa
• Ida Township, Michigan
• Ida, Michigan
• Ida Township, Douglas County, Minnesota
• Ida Lake, Shelby Township, Blue Earth County, Minnesota
• Ida, Virginia, an unincorporated community
• Ida., one of the abbreviations of Idaho

• 3,4-Isopropylidenedioxyamphetamine, an amphetamine drug
• Ida (plant), a genus in the family Orchidaceae
• IDA*, an iterative deepening depth-first search algorithm
• Iminodiacetic acid, a dicarboxylic acid amine
• Incremental Dynamic Analysis, a method for assessing the seismic behavior of structures
• Industrial Denatured Alcohol
• Intradural anesthesia or spinal anaesthesia
• Iron-deficiency anemia
• Isotope dilution analysis
• Ida, a fossil of the early primate genus Darwinius, species Darwinius masillae

• List of storms named Ida
• Mount Ida, disambiguation page
• I.D.A. (drug store), originally Independent Druggists' Alliance, a Canadian drug store
• Ila (Hinduism) or Idā, a Vedic goddess
• Ida (Middleverse), a fictional android librarian in comic books
• Ida (sword), a type of sword used by the Yoruba people
• Ida (yoga), a Nadi in Indian medicine and yoga
• USS Ida (1863), a Union Navy steamer of the American Civil War
• Individual Development Account, an asset building tool for low-income families
• Princess Ida, the comic opera's eponymous fictional heroine
• Idaho Falls Regional Airport's IATA airport code
• Idaxo-Isuxa-Tiriki language's ISO 639-3 code
• Ida, a 2017 novel by Alison Evans

• Idas (disambiguation)
• Ita (disambiguation)
• Itta (592–652), wife of Pepin of Landen and mother of Saint Begga

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