Black wattle is the common name for a number of species of trees that are native to Australia, as listed below:

• Acacia aulacocarpa
• Acacia auriculiformis, also known as Darwin Black Wattle or northern black wattle;
• Acacia concurrens
• Acacia crassicarpa
• Acacia decurrens, also known as Early Black Wattle
• Acacia hakeoides, also known as Western Black Battle
• Acacia implexa
• Acacia leiocalyx, also known as Early-flowering Black Wattle
• Acacia mabellae
• Acacia mangium
• Acacia mearnsii, also known as Late Black Wattle and the species of tree that is known to be, commercially, the most important tannin producer in Southern Africa
• Acacia melanoxylon, a 'timber' tree that is commonly known as Australian Blackwood
• Acacia neriifolia
• Acacia plectocarpa
• Acacia salicina
• Acacia stenophylla

It may also refer to Callicoma serratifolia, a tall shrub or tree which is also found in Australia.