James Hennessy may refer to:

• James Hennessy (diplomat) (born 1923), British diplomat and civil servant
• James Hennessy (politician) (1867–1945), French politician, naval officer and equestrian
• James Hennessy, 2nd Baron Windlesham (1903–1962), British peer and decorated British Army officer

Topics referred to by the same termThis disambiguation page lists articles about people with the same name.
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