Andrew Mulholland (1791–24 August 1866), was an Irish cotton and linen manufacturer.
Andrew realised that the supply of flax yarn being made by hand was quite insufficient to meet the demands of the Belfast spinners and that flax was being shipped across to Manchester to be spun and reimported as yarn.
After the death of his brother Andrew carried on the business alone and for some years enjoyed very profitable results from having a near monopoly in the flax-spinning industry.
When Belfast was incorporated in 1842 Andrew became a member of the council, was elected the third Mayor in 1845, and presented the town with the organ in Ulster Hall at a cost of £3,000.
1819) became Member of Parliament for co. Down in 1874, sat for Downpatrick from 1880 to 1885, and was in 1892 created Baron Dunleath of Ballywalter.