Acer duplicatoserratum is a species of maple, native to southern China, including Taiwan.
It is a small tree, in the same group of maples as Acer palmatum. The leaves are palmately lobed with seven to nine lobes, 2.3–10 cm long and 3–10 cm broad.
There are two varieties:
- Acer duplicatoserratum var. duplicatoserratum. Taiwan, endemic; listed as Vulnerable. Leaf petioles always pubescent.
- Acer duplicatoserratum var. chinense C.S.Chang. Mainland China, in Anhui, Fujian, Guizhou, southern Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shandong, and Zhejiang. Leaf petioles only pubescent when young, becoming hairless.
The taxonomic status of the species and its close relatives remains unresolved, and it is possible the species may be relegated to synonymy within Acer ceriferum in the future.