James Armour Johnstone (25 June 1859–8 May 1933) was a New Zealand businessman and stock breeder.
They made their home at Maori Hill and owned farm property at Bushey Park near Palmerston.
During one of these trips Johnstone became aware of a demand in Argentina for Corriedale sheep, a breed which had been developed in New Zealand.
As a result, in 1920 he purchased a large flock of the sheep and turned Bushey Park into a stud-stock breeding centre.
[1] Johnstone suffered a bad fall from his horse in the early 1930s, which led to a decline in his health.