1951
- January 21
- New Zealand’s worst yachting disaster. 10 people lost when 2 yachts "Husky" and "Argo" sink in a storm during the Wellington to Christchurch centennial race. Only one of the 22 starters finished the course.
- February 13
- Waterfront strike begins, with all New Zealand ports idle by February 19. As in previous strikes, Lyttelton avoided the worst of the violence and confrontations which occurred in other ports.
- June 29
- First regular South Island trans-Tasman flights begin from Melbourne to Christchurch.
- July 11
- Waterfront strike ends.
- (no date)
- North Canterbury Red Cross begins New Zealand’s first "meals on wheels".