Ilex havilandii is a species of flowering plant in the family Aquifoliaceae. It is endemic to Borneo. It is named for the British naturalist George Darby Haviland.
Ilex havilandii may grow as a shrub or as a tree up to tall or as an epiphyte. The bark is white to grey. The leathery leaves are elliptic to oblong and measure up to long. The , in , feature white to pinkish-purple flowers. The round fruits are dark purple or reddish.
Ilex havilandii is endemic to Borneo. Its habitat is on ridges, in forests to elevations of .