1972 Norwegian European Communities membership referendum

A referendum on joining the European Community was held in Norway on 25 September 1972. After a long period of heated debate, the "no" side won with 53.5% of the vote. Prime Minister Trygve Bratteli, who had championed a "yes" vote, resigned as a result. This was Norway's second attempt at becoming a member, after having been vetoed by France in January 1963 and again temporarily in 1967, but the first attempt with a referendum on a set of fully negotiated accession terms.

Endorsement
{{Endorsements box }}
 * title = Vote in favor of EF
 * columns = yes
 * list =
 * Gullsmedfagets Rasjonaliseringsselskap
 * Hotel and Restaurant Workers' Union
 * Norwegian Conservative Party's Women's Association
 * Conservative Party
 * Kortevare- og Leketøygrossitenes Landsforening
 * {{ill|Kosmetikkleverandørenes forening|no}}
 * Norwegian Confederation of Trade Unions
 * Libertas
 * Lærvarehandlernes Landsforening
 * Malermestrenes Landsforbund
 * {{{ill|Mineralvannsfabrikkenes Landsforening|no}}
 * Møbelprodusentenes Landsforening
 * Nordic Group
 * Norges Sildesalgslag
 * Norwegian Motor Trade Association
 * Norwegian Export Council
 * Norges Farvehandlerforbund
 * Norges Ferskfiskeomsetnings Landsforening
 * Norges Glass- og Stentøihandleres Forbund
 * Norges Gullsmedforbund
 * Union of Employees in Commerce and Offices
 * {{ill|Norges Handelsstands Forbund|no}}
 * Federation of Norwegian Industries (1919–1989)
 * {{ill|Norges dagligvareforbund|no|Norges Kolonial- og Landhandlerforbund}}
 * Conservative Students' Association (Oslo)
 * Norwegian Shipowners' Association
 * Norges Skibsførerforbund
 * Norges Tekstilkjøpmenns Forbund
 * Norges Treforedlingsråd
 * Norwegian Employers' Confederation
 * Norwegian Union of Building Industry Workers
 * Norwegian Union of Electricians and Power Station Officials
 * Norsk Elektroteknisk Forening
 * Norwegian Prison and Probation Officers' Union
 * Norsk gullsmedarbeiderforbund
 * Norwegian Union of Chemical Industry Workers
 * Norwegian Union of Municipal Employees
 * National Union of Norwegian Locomotivemen
 * Norsk Medisinalindustris Felleskontor
 * Norwegian Union of Food, Beverage and Allied Workers
 * Norwegian Union of Paper Industry Workers
 * Norwegian Union of Postmen
 * Norwegian Seafarers' Union
 * Norsk Skibsmæglerforbund
 * Norwegian Union of Forestry and Land Workers
 * Norwegian Union of Telecommunication Workers
 * Norwegian Civil Service Union
 * Norwegian Union of Wood Industry Workers
 * Norsk Agenters Landsforbund
 * Norske Fiskerprodusenters Forening
 * Norske Forsikringselskerps forbund
 * Norske håndverks- og Industribedrifters Forbund
 * Norske Papirhandlers Landsforbund
 * Norske Svovelkisprodusenters Forening
 * Parfymehandlernes Landsforbund
 * Polyteknisk Forenings Gruppe for Bedriftsledelse
 * Redernes Arbeidsgiverforening
 * Skibsfartens Arbeidsgiverforening
 * {{ill|Skogbruksforeningen av 1950|no|Norskog}}
 * Statstjenestemannskartellet
 * Norwegian Young Conservatives