Shirley Boys' High School is a single sex state (public) secondary school in Christchurch, New Zealand. It was originally situated on a 6 hectare site in the suburb of Shirley, but in April 2019 moved, along with Avonside Girls' High School, further east to the former QEII Park, 8.6 kilometres from the city centre.

Shirley, sometimes referred to as Windsor, is a suburb of Christchurch, New Zealand, about 5 kilometres (3.1 mi) north-east of the city centre. The area was used for farming from the 1850s, and subdivision started in the early 20th century, with most of the houses being built between 1950 and 1980.