Hunter Valley Grammar School (abbreviated as HVGS) is an independent secular co-educational early learning, primary, and secondary day school, located in Ashtonfield, a suburb of Maitland, New South Wales, Australia.

The ASX Sharemarket Game, in which students compete with the other students in the nation in achieving the highest market share in an online simulation of the ASX Stock Exchange, Australian Business Week and the Online Global Challenge are run by the Commerce faculty, whilst Debating, Chess, Tournament of Minds and Mock Trials are run through the English faculty.

Sports include rugby union, rugby league, soccer, netball, cricket, tennis, basketball, rowing, equestrian, touch football, volleyball, athletics, hockey, golf, aerobics, and snowsports.

[9][10] The School's rowing complex is located at Berry Park, Morpeth along the Hunter River.

The rowing shed was upgraded to a two-story complex in 2015, allowing for more boats, training equipment, and improving the existing amenities.