| Hadlow Preparatory School | |
| Type: | Trinity school boys and girls (Years 1–8) |
| Denomination: | Anglican |
| Founder: | Alexander William Don 1896—1954 |
| Address: | 68 High Street, Masterton, New Zealand |
| Coordinates: | -40.9592°N 175.6401°W |
| Principal: | Andrew Osmond |
Hadlow Preparatory School is a state-integrated Anglican primary school in High Street, Masterton, New Zealand.[1]
Hadlow opened as a boarding (40 boys) and a day school (20 boys) for boys aged 8 to 14 at the beginning of 1929 under principal and founder A. W. Don.[2] At the first break-up ceremony the prizes went to the sons of major Wairarapa landowners.[3]
The school was purchased by Anglican girls school, St Matthew's, on Mr Don's untimely death in 1954 and Mr John Woodward Bird 1892—1970, a senior master at Wairarapa College, was appointed principal.[4]
On Mr Bird's retirement Mr John Kenneth Louisson 1918—2001 was appointed headmaster in 1961.[5]