The title Lord Newark was a Lordship of Parliament in the Peerage of Scotland, created in 1661 and extinct in 1694, though the title continued to be claimed until the 19th century.
David Leslie was fifth son of Patrick Leslie, Commendator of Lindores. A Covenanter general, he was created Lord Newark on 31 August 1661, with further remainder to the heirs male of his body. He died in February 1682 and was succeeded by his son David. Along with three other daughters who died unmarried, he was also father of Elizabeth, who married Sir Archibald Kennedy, 1st Baronet, of Culzean; Mary, who married firstly Sir Francis Kinloch, 2nd Baronet, of Gilmerton, and secondly Sir Alexander Ogilvy, 1st Baronet, of Forglen; and Margaret, who married James Campbell, fourth son of Archibald Campbell, 9th Earl of Argyll.
David Leslie was only son of the first Lord Newark. On 16 August 1672, as Master of Newark, he had a charter of the barony of Abercrombie, which his father had purchased along with St Monans from Lord Abercrombie. He succeeded to his father's place in Parliament, but was fined for absence in 1693. He died the following year on 15 May 1694, when his peerage became extinct, though his eldest daughter assumed the title. His other daughters by his wife Elizabeth, daughter of Sir Thomas Stewart of Grandtully, included Grizel, who married Thomas Drummond of Logiealmond, and Christian, who married Thomas Graham of Balgowan.