Abel Smith III (29 June 1748 – 22 January 1779) of Wilford House in the parish of Wilford, near Nottingham, England, was a British banker and politician who sat briefly in the House of Commons from 1778 to 1779.
His next younger brother was Robert Smith, 1st Baron Carrington, who followed him as an MP for Nottingham, and took over the business on his father's death and in 1796 he was raised to the peerage.
His father Abel Smith II entered Parliament for a pocket borough in 1774 and subsequently for two more, in Cornwall.
Four years later, in October 1778, the young Abel Smith III could rely on the family's standing in his home city to secure election as a Member of Parliament for Nottingham; however, he died only three months later.
He married Elizabeth Uppleby, a daughter of Charles Uppleby of Wootton, by whom he had one daughter: This article about a Member of the Parliament of Great Britain (1707–1800) representing an English constituency is a stub.