Kariong Mountains High School is a government-funded co-educational comprehensive secondary day school, located in Kariong, a suburb of Gosford, in the Central Coast region of New South Wales, Australia.

Established on 22 February 2010 for students in Year 7 and Year 8 only, the school enrolled 540 students in 2018, from Year 7 to Year 12, of whom five percent identified as Indigenous Australians and ten percent were from a language background other than English. The school is operated by the NSW Department of Education; the principal is Anne Vine.

Most of the Parklands, including the Kariong Mountains High School site, are listed on the New South Wales State Heritage Register.

• Dylan Littlehales – paracanoeist competed in the 2016 Rio Paralympics

• List of government schools in New South Wales: G–P
• Education in Australia

• Official website