Wacka
Wacka may refer to:

People and characters
 Walter Scott (Australian footballer) (1899–1989), an Australian Australian-rules-football player nicknamed "Wacka"
 Jimmy Walker (footballer, born 1973), a British soccer player nicknamed "Wacka"
 John Williams (Australian senator) (born 1955), an Australian politician nicknamed "Wacka"

Fictional characters
 Wacka Dawson, a fictional character from the 1958 stageplay The One Day of the Year

Other uses
 Wacka or Gugelhupf, an Austrian cake
 Cobra maneuver also called wacka manoeuver, an aerobatics manœuver

See also

 Wacka-Wacka Brothers, fictional characters from Poppets Town
 Wah-wah (music) or wacka-wacka
 Wah-wah pedal or wacka-wacka pedal
 
 WACA (disambiguation)
 Wacca (disambiguation)
 Waka (disambiguation)
 Wakka (disambiguation)
 Waka Waka (disambiguation)