A waddy is an Australian Aboriginal hardwood club.
Waddy may also refer to:
People Waddy (surname) Waddy Butler Wood (1869-1944), American architect Watkin Tudor Jones (born 1974), South African musician Waddy Wachtel (born 1947), American musician and record producer
Other uses Acacia peuce, an Australian tree Waddy, Kentucky, United States, an unincorporated community within Shelby County Waddy House, a historic home in Maryland, United States
See also Stack Waddy, a British blues rock band Wadi (disambiguation)