A fly-whisk (or fly-swish) is a tool that is used to swat flies, A similar gadget is used as a hand fan in hot tropical climates, sometimes as part of regalia.

Fly-whisks appear frequently in the traditional regales of monarchs and nobility in many parts of the African continent. Fly whisks, called "ìrùkẹ̀rẹ̀" in Yoruba, were used by Yoruba monarchs and chiefs as a symbol of power and respect. This use has sometimes carried on into modern contexts: Kenyan leader Jomo Kenyatta carried a fly-whisk, a mark of authority in Maasai society, as did Malawian leader Hastings Banda, while South African jazz musician Jabu Khanyile also used a Maasai fly-whisk as a trademark when on stage.

The fly-whisk is one of the traditional symbols of Buddhist monastic hierarchy in China and Japan, along with the khakkhara, jewel scepter, and begging bowl. The fly-whisk in Buddhism represents the symbolic "sweeping" of ignorance and mental afflictions.

A fly-whisk forms part of the royal regalia of Thailand. It consists of the tail hairs of a white elephant. Fly-whisks were also used in Polynesian culture as a ceremonial mark of authority.

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