Grevillea rivularis, commonly known as Carrington Falls grevillea, is a critically endangered species of flowering plant in the family Proteaceae. It is endemic to a restricted distribution within the Carrington Falls area of New South Wales, Australia and grows on moist, sandy soils in riparian environments. It is a dense, spreading shrub with divided leaves with more or less linear, sharply-pointed lobes, and clusters of purplish-cream to mauve-pink flowers that turn pink and darken as they age.