| Birthname: | Stewart Clark |
| Honorific-Suffix: | JP DL |
| Constituency Mp: | Paisley |
| Term Start: | 15 February 1884 |
| Term End: | 24 November 1885 |
| Predecessor: | Humphrey Crum-Ewing |
| Successor: | William Boyle Barbour |
| Majority: | 1243 |
| Birth Date: | 2 January 1830 |
| Death Date: | 21 November 1907 |
| Party: | Liberal |
| Nationality: | Scottish |
| Citizenship: | United Kingdom |
| Spouse: | Annie Smiley |
| Children: | 4 |
Stewart Clark JP, DL (2 January 1830 – 21 November 1907) was a Scottish businessman and Liberal Party politician.
Stewart Clark was a thread manufacturing entrepreneur. In the 18th century James and Patrick Clark started a thread business which expanded to the United States in the 19th century. In 1952 the firm merged with J&P Coats forming what has since been renamed the Coats Group.[1]
Clark was a Justice of the Peace in Linlithgow and was the Deputy Lord Lieutenant for Renfrewshire. Clark was the Member of Parliament (MP) for Paisley from 1884 to 1885.[2]
Stewart Clark lived in Dundas Castle which he bought in 1899 and had four children including Sir John Stewart-Clark, 1st Baronet of Dundas. The title was taken after Dundas Castle and Clark's son, John, took the double-barrelled surname 'Stewart-Clark' in honour of his father.