Supplejack is a common name for several plants and may refer to:
Plants in the Flagellariaceae family:
Supplejack, Flagellaria indica a bamboo–like vine plant species native to eastern and northern Australia
Plants in the Rhamnaceae family:
Alabama supplejack, Berchemia scandens a climbing plant native to central and southern parts of the United States
Supplejack tree, Ventilago viminalis, a tree native to Northern and Central Australia
Plants in the Ripogonaceae family:
Supplejack, Ripogonum scandens, a vine native to New Zealand
