Thomas Brand, 20th Baron Dacre (25 March 1774 – 21 March 1851) was a British peer and Whig politician.
Dacre entered Parliament for Helston in January 1807, a seat he only held until May of the same year, when he was returned for Hertfordshire. He continued to represent this constituency until 1819, when he succeeded his mother in the barony of Dacre and entered the House of Lords.
Lord Dacre married Barbarina, daughter of Admiral Sir Chaloner Ogle, 1st Baronet and widow of Valentine Wilmot, in 1819. The marriage was childless. He died at The Hoo, Hertfordshire, in March 1851, aged 76, and was succeeded in the barony by his younger brother, Henry. Lady Dacre died in London in May 1854, aged 86.
- Leigh Rayment's Peerage Pages [self-published source][better source needed]
- Leigh Rayment's Historical List of MPs
|Parliament of the United Kingdom|
John Du Ponthieu
| Member of Parliament for Helston
With: John Du Ponthieu
Sir John St Aubyn, Bt
| Member of Parliament for Hertfordshire
With: Sir John Sebright, Bt
Sir John Sebright, Bt
Hon. William Lamb
|Peerage of England|
| Baron Dacre
Henry Otway Trevor