Parramatta High School (abbreviated as PHS and colloquially known as Parra High) is a government-funded co-educational dual modality partially academically selective and comprehensive secondary day school, located on the Great Western Highway in the central business district of Parramatta, a western suburb of Sydney, New South Wales, Australia.

There are two advanced carnivals, including zone and/or regional by which students compete to earn their house points.

At a cost of A£13,000, Parramatta High School was officially opened by Campbell Carmichael, the Minister of Public Instruction, on Monday, 22 February 1913.

[2] In 2013 Parramatta High School celebrated its centenary, marking 100 years since its establishment on 28 January 1913.

Class of 2018, the 100th cohort to enrol at Parramatta High School, acknowledged this by implementing the Phoenix on the back of their year 12 jerseys.