James Tuchet, 3rd Earl of Castlehaven, 13th Baron Audley, 1st Baron Audley of Hely (about 1617 -11 October 1684) was the son of Mervyn Tuchet, otherwise Audley, 2nd Earl of Castlehaven and his first wife, Elizabeth Barnham (1592 - about 1622).
He succeeded his father as Earl of Castlehaven on 14 May 1631, when his father was attainted and beheaded.
He was created Baron Audley of Hely with remainder "to his heirs forever" on 3 June 1633, with place and precedency of George, his grandfather, formerly Baron Audley of Hely. (This creation effectively nullifying the attainting of his father).
He married twice, first Elizabeth Brydges, daughter of Grey Brydges, Lord Chandos (before 1581-1621) and of his wife née Anne Stanley (1580-1647), who married the 2nd Earl of Castlehaven after Lord Chandos' death. (Anne Stanley was thus both the 3rd Earl's step-mother, and his mother-in-law.) He married secondly, about 19 June 1679, Elizabeth Graves.
He died sine prole 11 October 1686, at Kilcash, County Tipperary, Ireland and was succeeded in the Earldom by his brother.
{| border="2" align="center"
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|width="30%" align="center"|Preceded by:
Mervyn Tuchet
|width="40%" align="center"|Earl of Castlehaven
|width="30%" align="center" rowspan="2"|Followed by:
Mervyn Tuchet
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|width="30%" align="center"|Preceded by:
New Creation
|width="40%" align="center"|Baron Audley of Hely
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