Boyd's forest dragon (Lophosaurus boydii) is a species of arboreal lizard in the family Agamidae. The species is native to rainforests and their margins in the Wet Tropics region of northern Queensland, Australia. It is the larger of the two species of Lophosaurus found in Australia. Another species, the southern angle-headed dragon, L. spinipes, is found in southern Queensland and northern New South Wales.