ACO, AcO, or Aco may refer to:
Acolman de Nezahualcóyotl is a town and municipality located in the northern part of Mexico State, part of the Greater Mexico City area, just north of the city proper.
Acyl-coenzyme A thioesterase 4 is an enzyme that in humans is encoded by the ACOT4 gene.
Acorn Computers Ltd. was a British computer company established in Cambridge, England, in 1978. The company produced a number of computers which were especially popular in the UK, including the Acorn Electron and the Acorn Archimedes.
Aconitum (/ˌækəˈnaɪtəm/), also known as aconite, monkshood, wolf's bane, leopard's bane, mousebane, women's bane, devil's helmet, Queen of all Poisons, or blue rocket, is a genus of over 250 species of flowering plants belonging to the family Ranunculaceae.
Aconitic acid is an organic acid. The two isomers are cis-aconitic acid and trans-aconitic acid. The conjugate base of cis-aconitic acid, cis-aconitate is an intermediate in the isomerization of citrate to isocitrate in the citric acid cycle.
Acoma Pueblo (/ˈækəmə/; Western Keresan: Haak'u; Zuni: Hakukya; Navajo: Haakʼoh) is a Native American pueblo approximately 60 miles (97 km) west of Albuquerque, New Mexico in the United States.
In 2009, workers at offices of the Association of Community Organizations for Reform Now (ACORN), a non-profit organization that had been involved for nearly 40 years in voter registration, community organizing and advocacy for low- and moderate-income people, were secretly recorded by conservative activists Hannah Giles and James O'Keefe – and the videos "heavily edited" to create a misleading impression of their activities.
An acoustic metamaterial is a material designed to control, direct, and manipulate sound waves as these might occur in gases, liquids, and solids.
Aconitum napellus (monk's-hood, aconite, wolfsbane) is a species of flowering plant in the genus Aconitum of the family Ranunculaceae, native and endemic to western and central Europe.