William Leach may refer to:
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William Elford Leach
William Elford Leach (2 February 1791 – 25 August 1836) was an English zoologist and marine biologist.
Life and work
Elford Leach was born at Hoe Gate, Plymouth, the son of an attorney. At the age of twelve he began a medical apprenticesh ...
(1791–1836), English zoologist and marine biologist
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William Leach (politician) (1870–1949), British Labour Party politician, minister in the first Labour government
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William Turnbull Leach (1805–1886), Canadian clergyman and academic
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William Leach (canoeist) (born 1946), American sprint canoer
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William Leach (cricketer, born 1851) (1851–1932), English cricketer
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William Leach (cricketer, born 1883)
William Robert Ronald Leach (3 April 1883 – 1 November 1969) was an English first-class cricketer and Royal Navy officer.
The son of Major-General Edmund Leach and Frances Elizabeth Ince, he was born at Kensington in April 1883. He was commi ...
(1883–1969), English cricketer
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William Leach (Canadian Army officer) (1942–2015)
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William Leach (historian), American historian
{{hndis , name = Leach, William