Mount Gibraltar, Mountain summit in Southern Highlands, Australia

Mount Gibraltar is a mountain summit in the Southern Highlands rising approximately 863 meters between Bowral and Mittagong. The peak features a ridge structure with steep slopes and forest that covers much of the landscape.

Stone quarrying began on the mountain in 1886, extracting trachyte that was used for major buildings including Sydney's Queen Victoria Building and Parliament House. This quarrying operation continued until 1986, spanning a full century of activity.

The mountain's Ngunnawal–Gundungurra name is Bowrell, meaning 'a high place', recorded by explorer John Wilson after he climbed it in 1798. The peak area holds the Mount Gibraltar Reserve, acquired by Alderman Joshua Stokes in 1919, where a large stone construction bears a memorial plaque to him.

The summit has several viewing platforms where visitors can see across Bowral and Mittagong, with clear sightlines to Sydney on good weather days. Walking trails require solid footwear as paths can be steep and uneven in places.

The reserve's plant life grows on volcanic soil, a rare remnant community; its standout tree is Eucalyptus fastigata, the Brown Barrel. Since 1994 a Landcare bush regeneration program has worked to clear introduced species such as privet, ivy, honeysuckle and banana passionfruit, and the group compiled a complete site species list.