The mayor of Kauai is the chief executive officer of the Kauai County in the state of Hawaii. The mayor has municipal jurisdiction over the islands of Kauai and Niihau. Derek Kawakami was elected on November 6, 2018, as the mayor of Kauai over JoAnn Yukimura, who was Kauai's mayor from 1988 to 1992, with 15,857 votes out of 40,323 registered voters in the County of Kauai. The mayor of Kauai is the successor of the Royal Governors of Kauai of the Kingdom of Hawaii.
The most recent previous mayor of Kauai, Bryan J. Baptiste, served from 2002 until his death on June 22, 2008. Bill "Kaipo" Asing was sworn as acting mayor on July 17, 2008, until a special election could be held to fill the remaining two years of Baptiste's term.
Bernard Carvalho was elected on November 4, 2008, to complete the remaining two years of Baptiste's unexpired term.
List of mayors of Kauai
{| class="wikitable"
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! Mayor !! Term begins !! Term ends !! Notes
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| Antone Vidinha || 1969 || 1972 || First mayor of Kauai; served two consecutive terms (1969-1970, 1971-1972). Defeated for re-election in 1972.
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| Francis M. F. Ching || 1972 || 1974 ||
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| Eduardo Malapit || 1974 || 1982 ||
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| Tony Kunimura || 1982 || 1988 || Defeated for re-election in the 1988 mayoral primary by JoAnn Yukimura.
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| JoAnn Yukimura || 1988 || December 1994 || First female mayor of Kauai. Defeated by Maryanne Kusaka in the 1994 general election.
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| Maryanne Kusaka || December 1994 || December 2, 2002 ||
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| Bryan Baptiste || December 2, 2002 || June 22, 2008 || Died in office on June 22, 2008
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| Gary Heu || June 22, 2008 || July 17, 2008 || Heu was the late Mayor Baptiste's administrative assistant. He served as acting mayor from Baptiste's death until Asing was sworn in as interim mayor on July 17, 2008.