Acacia caesiella, commonly known as tableland wattle, bluebush wattle or blue bush, is a shrub or small tree that is endemic to New South Wales, Australia. It grows to between 1 and 3.5 metres high (occasionally 5 metres), has smooth grey or bown bark, and phyllodes that are 4 to 10 cm long and 3 to 7 mm wide. Globular yellow flowerheads appear between July and October in the species native range.