Kwak

• KWAK (AM), a radio station (1240 AM) licensed to serve Stuttgart, Arkansas, United States
• KWAK-FM, a radio station (105.5 FM), licensed to serve Stuttgart, Arkansas
• KWAK-LP, a low-power radio station (102.5 FM) licensed to serve San Xavier, Arizona, United States

• James Kwak, an American law professor
• Geesje Kwak, a Dutch art model
• Nang Kwak, a Thai Bodhisattva
• Pauwel Kwak, a Belgian ale named after an 18th-century innkeeper and brewer
• Alfred J. Kwak, a cartoon television series
• Kwak (surname), a Korean surname (郭, 霍) alternatively spelled Gwak

• Kwak, an alternative spelling of couac, a manioc flour.

• Guo, a Chinese surname (郭) alternatively Romanized as Kwok

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