Hugh de Lacy may refer to:
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Hugh de Lacy, Lord of Lassy (c.1020–1085), first recorded member of the Norman noble family
de Lacy
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Hugh de Lacy, Lord of Meath (died 1186), 4th Baron Lacy
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Hugh de Lacy, Abbot of Shrewsbury (died c. 1215/18)
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Hugh de Lacy, 1st Earl of Ulster
Hugh de Lacy, 1st Earl of Ulster (c. 1176after December 26, 1242) was an Anglo-Norman soldier and peer. He was a leading figure in the Norman invasion of Ireland in the 12th century, and was created Earl of Ulster in 1205 by King John of En ...
(c. 1176–1242), younger son of Hugh de Lacy, Lord of Meath
*Hugh Lacy (1943–1998), 3rd Baronet of the
Lacy baronets
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Hugh Lacy (bishop) (died 1580), Anglican bishop in Ireland
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Hugh De Lacy (politician) (1910–1986), American politician
{{human name disambiguation, Lacy, Hugh de