Abo or ABO may refer to:

Aviation

* ABO, FAA airport code for

Antonio (Nery) Juarbe Pol Airport Antonio (Nery) Juarbe Pol Airport is a public use airport located southeast of Arecibo, Puerto Rico. It is owned by the Puerto Rico Ports Authority. This airport is included in the National Plan of Integrated Airport Systems for 2011–2015, wh ...

in Arecibo, Puerto Rico * ABO, IATA airport code for Aboisso Airport in Comoé District, Ivory Coast

Entertainment

* Ābo, the Japanese name of Ekans, a fictional species in the ''Pokémon'' franchise *

Omegaverse Omegaverse, also known as A/B/O or α/β/Ω (an abbreviation for "alpha/beta/omega"), is a subgenre of speculative erotic fiction. The genre supposes the existence of a dominance hierarchy among humans, as similar to those associated with wolves ...

, a genre of fiction also known as A/B/O

Languages

* Abõ or Abon, a Cameroonian language (ISO 639-3: abo) *

Bankon language Bankon (Abo, Abaw, Bo, Bon) is a Bantu language spoken in the Moungo department of the Littoral Province of southwestern Cameroon. It has a lexical similarity of 86% with Rombi which is spoken in the nearby Meme department of Southwest Provi ...

or Abo, a Cameroonian language

Math and science

ABO blood group system The ABO blood group system is used to denote the presence of one, both, or neither of the A and B antigens on erythrocytes (red blood cells). For human blood transfusions, it is the most important of the 47 different blood type (or group) c ...

, a human blood type and blood group system **

ABO (gene) Histo-blood group ABO system transferase is an enzyme with glycosyltransferase activity, which is encoded by the ''ABO'' gene in humans. It is ubiquitously expressed in many tissues and cell types. ABO determines the ABO blood group of an indivi ...

, a gene in humans which encodes the ABO blood group system transferase enzyme * Adaptive Binary Optimization, an image compression algorithm

Organizations

American Board of Ophthalmology The American Board of Ophthalmology (ABO) is an independent, non-profit organization responsible for certifying ophthalmologists ( eye physicians and surgeons) in the United States of America. Founded in 1916, the ABO was the first American Bo ...

, a professional organization for ophthalmologists * American Board of Opticianry, a professional organization for opticians * American Board of Orthodontics, a professional organization for orthodontists * Antikythira Bird Observatory in Greece

People

* Abo (name), an Arabic or Hebrew male name * Abo of Tiflis (–786), an Arab East Orthodox Catholic saint * Abo, a List of ethnic slurs#A, derogatory term for Aboriginal Australians

Places

* Abo (historic place), an archaeological site in New Mexico, United States * Åbo, the Swedish name for Turku, a city in Finland * Abo, Missouri, an unincorporated community * Abo, New Mexico, an unincorporated community in the United States * Abo Canyon, also called Abo Pass, a mountain pass in central New Mexico * Aboh, also known as Abo or Ibo, a town in Nigeria's Delta State