The following lists events that happened during 1921 in New Zealand.

Incumbents

Regal and viceregal

Government

The 20th New Zealand Parliament continues, with the Reform Party in Government

Parliamentary opposition

Judiciary

Main centre leaders

Events

Arts and literature

See 1921 in art, 1921 in literature, Category:1921 books

Music

See: 1921 in music

Radio

See: Public broadcasting in New Zealand

Film

See: Category:1921 film awards, 1921 in film, List of New Zealand feature films, Cinema of New Zealand, Category:1921 films

Sport

Chess

Cricket

Football

Golf

Horse racing

Harness racing

Thoroughbred racing

Lawn bowls

The national outdoor lawn bowls championships are held in Wellington.

Rugby union

Births

January

February

March

April

May

June

July

August

September

October

November

December

Deaths

January–March

April–June

July–September

October–December