AMI or Ami or AmI may refer to:

• Aeronautica Militare Italiana, the Italian Air Force
• African Minerals Limited, LON:AMI
• Alpha Macky International, a Senegalese company
• Air Micronesia, later Continental Micronesia
• Amazon Malaria Initiative
• American Megatrends, a computer hardware and software supplier, creating AMIBIOS
• AMI Semiconductor or American Microsystems, Inc., a semiconductor manufacturer (part of ON Semiconductor since 2008).
• American Media, Inc., a publisher of celebrity tabloids and fitness magazines
• Alternative Miss Ireland, an alternative themed beauty pagent held annually in Dublin, Ireland
• Addeo Music International, an international jazz booking agency established in 2008
• Anugerah Musik Indonesia, the annual Indonesian Music Awards
• American Mustache Institute, an organization advocating facial hair
• Assistência Médica Internacional, an international medical aid organization based in Portugal
• Association of Medical Illustrators, an international organization focused on the union of art and science
• American Meat Institute, a United States meat and poultry industry trade organization
• Australian Marketing Institute, a professional organisation for marketers
• Australian Motor Industries, a defunct indigenous Australian auto maker
• Armes-Militaria-Informations, a Belgian magazine that later was called Fire
• American Monetary Institute, a monetary history and advocacy organization
• Association Montessori Internationale, founded in 1929 by Maria Montessori
• Accessible Media Inc., a Canadian non-profit media organization broadcasting AMI-audio and AMI-TV
• Monti's Agenda for Italy an electoral coalition of political parties in Italy
• Association of Municipalities for Independence, in Catalonia

Ami was the name of a word processing program developed and marketed by Samna in the late 1980s. (Samna was purchased by Lotus Software in 1990.) Shortly after its introduction, the name of the program was changed to "Ami Pro."

In computing, ambient intelligence (AmI) refers to electronic environments that are sensitive and responsive to the presence of people. Ambient intelligence is a vision on the future of consumer electronics, telecommunications and computing that was originally developed in the late 1990s for the time frame 2010–2020. In an ambient intelligence world, devices work in concert to support people in carrying out their everyday life activities, tasks and rituals in an easy, natural way using information and intelligence that is hidden in the network connecting these devices (see Internet of Things). As these devices grow smaller, more connected and more integrated into our environment, the technology disappears into our surroundings until only the user interface remains perceivable by users.