Equinor ASA is a Norwegian multinational energy company headquartered in Stavanger, Norway. It is primarily a petroleum company, operating in 36 countries with some investments in renewable energy. By revenue, while under Statoil name, Equinor was ranked by Forbes Magazine (2013) as the world's eleventh largest oil and gas company and the twenty-sixth largest company, regardless of industry, by profit in the world. The company has about 20,200 employees.

The current company was formed by the 2007 merger of Statoil with the oil and gas division of Norsk Hydro.

As of 2017, the Government of Norway is the largest shareholder with 67% of the shares, while the rest is public stock. The ownership interest is managed by the Norwegian Ministry of Petroleum and Energy. The company is headquartered and led from Stavanger, while most of their international operations are currently led from Fornebu.

The name Equinor was adopted in 2018 and is formed by combining “equi”, the root for words such as equal, equality and equilibrium, and “nor”, indicating that the company is of Norwegian origin. The Norwegian meaning of the former name Statoil is State-Oil, indicating that the oil company is state owned.