ARB, ARb or arb may refer to:
Arbitration, a form of alternative dispute resolution (ADR), is a technique for the resolution of disputes outside the courts.
In economics and finance, arbitrage (US /ˈɑːrbᵻtrɑːʒ/, UK /ˈɑːbᵻtrɪdʒ/, UK /ˌɑːbᵻtrˈɑːʒ/) is the practice of taking advantage of a price difference between two or more markets: striking a combination of matching deals that capitalize upon the imbalance, the profit being the difference between the market prices.
Arbeidernes Idrettsforbund (English: "Workers' Federation of Sports") was a sporting organization in Norway between 1924 and 1946. As of 1935, AIF had around 50,000 members.
An arbuscular mycorrhizal fungus (plural mycorrhizae or mycorrhizas, a.k.a. endomycorrhiza, AM fungi, or AMF) is a type of mycorrhiza in which the fungus penetrates the cortical cells of the roots of a vascular plant.
The Arbëreshë or Italo-Albanians are an ethnic and linguistic Albanian minority community living in southern Italy, mostly concentrated in scattered villages in the region of Calabria, but also with a few minor settlements in the regions of Apulia, Basilicata, Molise, and Sicily.
Arboreal locomotion is the locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them.
Arborfield Hall was a large country house on the banks of the River Loddon near the village of Arborfield in Berkshire.
Arbroath or Aberbrothock /ɑːrˈbroʊθ/ (Scottish Gaelic: Obar Bhrothaig, [opəɾˈvɾo.ɪkʲ]) is a former royal burgh and the largest town in the council area of Angus in Scotland, and has a population of 23,902. It lies on the North Sea coast, around 16 miles (25.7 km) ENE of Dundee and 45 miles (72.4 km) SSW of Aberdeen.
Arbre Serpents is a sculpture by Niki de Saint Phalle.