This information was published in 1966 in An Encyclopaedia of New Zealand, edited by A. H. McLintock. It has not been corrected and will not be updated.
Up-to-date information can be found elsewhere in Te Ara.
- OCEAN CURRENTS AROUND NEW ZEALAND
- OHAU, LAKE
- OLIVER, Walter Reginald Brook
- OLYMPIC GAMES
- OMAPERE, LAKE
- ONSLOW, Sir William Hillier, Bt., Fourth Earl, P.C., G.C.M.G.
- ORAKAU, SIEGE OF
- ORDER OF ST. JOHN – PRIORY IN NEW ZEALAND
- ORETI RIVER
- ORMOND, Hon. John Davies