OMA

OMA or Oma may refer to:

Businesses

Office for Metropolitan Architecture, architecture firm founded by Dutch architect Rem Koolhaas
Oswalds Mill Audio (OMA), a lifestyle company manufacturing horn loudspeakers and high end audio equipment

OMA (time signal), a former Czech longwave call sign
.oma, extension for files encrypted by OpenMG Audio for Sony's ATRAC3 format
Open Mobile Alliance, a standards body for the mobile phone industry
Optical modulation amplitude, an optical communication term
Outdoor Media Association, the peak industry body representing the Out-of-Home advertising industry in Australia
Outlook Mobile Access, a mobile phone email program using Microsoft Exchange Server

Operational Modal Analysis, a form of modal analysis which aims at identifying the modal properties of a structure based on vibration data collected when the structure is under its operating conditions

Oma Desala, a character in the television series Stargate SG-1
{{Nihongo|Ōma Kurogane|黒鉄王馬|Kurogane Ōma}}, a character in Japanese light novel series Chivalry of a Failed Knight
{{Nihongo|Kokichi Ōma|王馬小吉|Ōma Kokichi}}, a character in the video game Danganronpa V3: Killing Harmony
{{Nihongo|Shu Ouma|桜満集|Ōma Shū}}, a character and protagonist in the Japanese anime television series Guilty Crown
{{Nihongo|Ohma Tokita|十鬼蛇王馬|Tokita Ōma}}, a character and main protagonist from the Japanese manga series Kengan Ashura
{{nihongo4|Ohma Zi-O|オーマジオウ|Ōma Jiō}}, alternately spelled Oma Zi-O, a character and the main antagonist of the 29th season of the Kamen Rider Series, Kamen Rider Zi-O

Ontario Medical Association, a professional organization for physicians in Ontario, Canada
Opsoclonus Myoclonus Ataxia, a neurological disorder also known as Opsoclonus myoclonus syndrome
Otitis media acuta, an acute infection of the middle ear

Eppley Airfield, northeast Omaha, Nebraska, by IATA airport code
Grupo Aeroportuario Centro Norte, a Mexican airport operating company, by Mexican stock market ticker symbol
Omaha (Amtrak station), station code
ICAO designator for Oman Air, an Omani airline

Cyclone Oma, impacted Vanuatu, New Caledonia and the Solomon Islands in 2019
Object Management Architecture, a vision for the component software environment
Office of Multicultural Affairs, an Australian Government agency from 1987 to 1996
Oklahoma Military Academy, from 1919–1982, the former name of Rogers State University in Claremore, Oklahoma
Olympic Moustakbel d’Arzew, an Algerian football team
Open Mashup Alliance, an industry group for enterprise mashups
Orlando Museum of Art, an art museum in Orlando, Florida
Orthologous MAtrix, a database of orthologous genes across multiple species
Orderly marketing arrangement, a quantitative trade barrier