John Darker (c. 1722 – 8 February 1784) was a British merchant and politician who sat in the House of Commons between 1776 and 1784.
He remained in business until about 1773 and built up a fortune, acquiring property in Gayton, Northamptonshire and Leicestershire.
[1] In 1766 Darker was elected Member of Parliament for Leicester on the corporation interest at a contested by-election.
In the 1768 general election he stood again at Leicester as a corporation candidate, but was defeated in a fierce contest.
Although he is only recorded as having spoken only once in the House, he was very active in all parliamentary committees relating to trade and commerce.