Thomas Peter Legh (1754–1797), was a British Member of Parliament.

Born about 1754 he was the first son of Reverend Ashburnham Legh of Golborne and Charlotte Elizabeth Legh née Egerton.

[1] In 1794 he spent over £20,000 raising a regiment of fencible cavalry, The Lancashire Fencible Cavalry, to which he was appointed Colonel.

[a][2] Legh was Member of Parliament (MP) for the rotten borough of Newton in Lancashire from 1780 until his death in 1797.

[1] He died on 7 August 1797 leaving seven illegitimate children and his estates to his eldest son, Thomas Legh.