Denis Bowes Daly PC (c. 1745 – 17 December 1821), was an Irish politician.
Daly was the eldest son of Hyacynth Daly of Dalystown, and his cousion Rose Daly of Raford, both of County Galway. He was brought into the Irish parliament by his cousion, Denis Daly of Dunsandle, where he served from 1776 to 1801. In 1780 he married Mary Charlotte Ponsonby, daughter of John Ponsonby, and sister of George Ponsonby. However she died a year after the marriage, after which Daly refused to leave his house for more than twelve months.
A constant supporter of the Ponsonby's, he voted for catholic relief in 1778 and 1793, the repeal of Poynings' Law in 1780, and for commercial propositions in 1785. He was an agent for Viceroy William Fitzwilliam, 4th Earl Fitzwilliam in attempting to persuade John Beresford to accept a pension, thus leaving office without scandal.
Daly strongly opposed the Acts of Union 1800, co-ordinating the factions against the government. After the acts were passed he represented King's County (1801-02), Galway Borough (1802-05) and County Galway (1805-18). He was sworn of the Irish Privy Council on 7 June 1806.