The Norwegian School of Economics (Norwegian: Norges Handelshøyskole) or NHH is a business school situated in Bergen, Norway. It was founded in 1936 as Norway's first business school and is the leading teaching and research institution in Norway for the fields of management and business administration.

Admission to NHH is the most selective in the field of business administration in Norway and among the most selective of all study programs offered in Norway. The sole NHH undergraduate program consistently ranks among the most popular first choice for students applying for undergraduate study in Norway. In 2020, NHH was the most popular first choice of all undergraduate programs in Norway, with more than 2,100 first choice applications, and more than 5,000 in total, for 500 places.

The school participates in exchange programs with more than 170 foreign business schools and universities in over 50 countries, and around 40 percent of the school's students spend at least one semester on exchange. The school is a member of CEMS (The Global Alliance in Management Education) and the Partnership in International Management (PIM) network. It is accredited by EQUIS, AMBA and AACSB.

Traditionally, economics was only taught at Norwegian universities, mainly at the University of Oslo, where it was first conceived, in the 19th-century as a sub-discipline of law. Business administration was not regarded as an academic discipline, and no formal education program was available. NHH was founded to provide the first formal training in business studies with a two-year vocational degree, called handelskandidat ("candidate of commerce"). In 1963 the handelskandidat degree was renamed siviløkonom and it later evolved into a four-year degree. The school today offers degrees at the master's and doctoral levels.

At the end of the 19th-century, Oslo and Bergen business communities began discussing the need for a Norwegian business school. A number of schools had been opened across Europe, and during the early 20th-century several business schools were established in Scandinavia based on the German handelshochschule (business school) model. Among them was the Stockholm School of Economics which was founded in 1909. In 1917, Norway's parliament, the Storting, passed a resolution to establish a Norwegian business school.

After much lobbying and hard work, especially by Kristoffer Lehmkuhl, NHH was finally opened by King Haakon VII on Monday 7 September 1936, ten years before the University of Bergen was established. The strong involvement of the business community in Bergen had ensured not only that the school was established, but that it was based in Bergen. It closely linked to business community from the outset.

When NHH first opened, there were less than ten academic staff with 60 students enrolling each year. The first degree course offered was the Handelsdiplom (business diploma) and graduates received the title Handelskandidat (business graduate). This was initially a two-year course and, starting in 1938, a one-year additional course was offered to candidates who wanted to become teachers. In 1946 the Handelsdiplom course was extended to three years.

After the World War II, American influence became more important and also started to influence NHH to a greater extent. Graduates and staff began to go to the US to continue their studies and work for a period, a trend that greatly increased in the 1960s and 1970s. By the early 1950s the need for a doctoral programme at NHH had grown. In 1956, NHH received permission from the Norwegian government to award doctorates and in 1957 the first doctoral candidate graduated from NHH.