Herbert Mackworth

Herbert Mackworth (7 September 1687 – 20 August 1765) was a Welsh landowner, coal owner and MP.

He was the son of Sir Humphrey Mackworth of Gnoll, Glamorganshire, MP for Cardiganshire; his brother was William Mackworth Praed. He was educated at Westminster School, Magdalen College, Oxford and the Inner Temple. On his father's death in 1727 he inherited the Gnoll estate and substantial coal mining and copper smelting interests in the Neath valley.
He represented Cardiff Boroughs as an MP from 1739 to 1765.
He married Juliana, the daughter of William Digby, 5th Baron Digby, and had a son and 6 daughters. His son, also Herbert, followed him as MP for Cardiff and was created a baronet in 1776. His daughter Susanna married Sir John Hotham, 9th Baronet, Bishop of Clogher.