Wingnut may refer to:

Botany

• Pterocarya, a genus of trees bearing winged nuts

• Terminalia canescens, a species of tree native to northern Australia

Entertainment

• Wing Nuts: Battle in the Sky, a video game created by Rocket Science Games

• Wingnut, a character in the Care Bears franchise introduced in the movie Care Bears: Oopsy Does It!

• Wingnut, a character in the Teenage Mutant Ninja Turtles franchise

• WingNuts: Temporal Navigator, a computer game created by Freeverse Software

Sports

• Wichita Wingnuts, a Wichita, Kansas, baseball team

• Wingnut, nickname of Australian cricketer Adam Gilchrist

• Wingnut, nickname of Robert Weaver (born 1965), an American surfer

• WingNuts, name of a capsized sports boat involving fatalities in the 2011 Chicago Yacht Club Race to Mackinac

Other uses

• Wingnut (hardware), a nut with a pair of wings to enable it to be easily turned by hand

• Wingnut (politics), an American slang term for a person who holds extreme political views

• WingNut Films, film production company owned by Peter Jackson