Dyche is a surname. Notable people with the surname include:
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Lewis Lindsay Dyche (1857–1915), American naturalist
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Max Dyche (born 2003), English footballer
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Mick Dyche (1951–2018), English guitarist
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Schubert R. Dyche (1893–1982), American football and basketball coach
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Sean Dyche (born 1971), English footballer and manager
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Thomas Dyche (died 1733), English lexicographer
