Pizzey was born in Childers, Queensland in 1911 to John Thomas Pizzey and his second wife Ellen Elliott, née Brand. He was educated at Childers State School, Maryborough Central Boys' School, and Bundaberg High School. He was a student teacher at Bundaberg South State School in 1927, and taught at the Childers State School and Leichhardt Street State School. Involved in tennis and rugby union as a youth, Pizzey excelled in cricket and was selected for the Queensland Coltscricket team in 1929. In 1931, he was selected to represent Queensland in the Sheffield Shield against Victoria, but the match was cancelled due to rain and Pizzey was unable to represent the state.
Following his discharge from the AIF, Pizzey returned to teaching, and by 1946 was involved in administration at the Queensland Board of Adult Education. He resigned from the Department of Public Instruction in 1949 and became involved in representing the interests of sugar cane farmers as manager of the Childers Cane Farmers' Co-Operative and secretary to the Isis District Cane Growers' Executive. This representative role encouraged Pizzey to run for parliament, and in 1950 he won the safe Country Party seat of Isis in the Legislative Assembly of Queensland. In 1957, a split in the Labor Party's Queensland branch brought down the Labor government, forcing an election. The Country-Liberal Party Coalition won a sweeping victory, its first in 22 years. With his educational background, Pizzey was appointed Minister for Education in Frank Nicklin's cabinet, and retained this job for more than a decade. He was also deputy leader of the Country Party, but he took other concurrent roles also: he held the portfolios of migration, Aboriginal and Islander affairs and police. As education minister, Pizzey presided over a period of unprecedented growth, particularly in secondary education, and played a key role in establishing Queensland's second university, James Cook University in Townsville in 1961. He was praised for his focus on secondary schooling, although his sweeping intervention in education matters was considered to have led to Brisbane's first teachers' strike in 1968. Nicklin retired as Premier and party leader on 17 January 1968, and Pizzey succeeded him in both posts. Just over six months after his appointment, Pizzey died suddenly, in Brisbane, of a myocardial infarction. He was accorded a State funeral and cremated. Pizzey was succeeded as premier for a week by the Leader of the Liberal Party and Deputy Premier, Gordon Chalk, until the Country Party chose its new leader, Joh Bjelke-Petersen.
Jack Pizzey Cup
The Jack Pizzey Cup was donated by Pizzey in 1963 when he was Education Minister as a prize for a national schools championship tennis competition, replacing the Bruce Cup established in 1938 which then become a primary school competition prize. Although the Jack Pizzey Cup was intended to be a national competition, it was only contested between Queensland and New South Wales until 1978 when it was played in conjunction with the Federation Cup in Melbourne and become a national competition. As at 2018, the Pizzey Cup continues to be the national schools championship competition.