The flag of Norfolk Island was approved by the Norfolk Island Council on 6 June 1979. It became the official flag on the commencement date of the Norfolk Island Flag and Public Seal Act 1979 on 17 January 1980. The flag depicts the Norfolk Island Pine (Araucaria heterophylla) in a central white stripe between two green stripes.
The flag's geometry is a triband. It is similar to the flag of Canada (upon which it was based), with its use of only two colours, and incorporating a prominent local floral symbol in the middle. As with the Canadian flag it has a 1:2 ratio. The central stripe is wider than the two outer stripes, the ratio being 7:9:7. The flag bears a striking resemblance to the flag of Lebanon (which also features a green tree), the flag of Nigeria (a plain vertical green and white triband), and the 1968–1979 flag of Rhodesia (a green and white triband with the state's coat of arms on the white band).