David Hay Dalrymple (1840–1912) was an Australian pastoralist, chemist/druggist, and politician in Queensland, Australia.

He was educated at the Independent College in Taunton and attended lectures at the Bristol Medical School.

He was married to Euphemia Margaret McLean in Mackay on 23 Dec 1880 and had two sons and two daughters.

[4] He was a Member of the Queensland Legislative Assembly for Mackay from 5 May 1888 to 27 August 1904.

[5] Dalrymple died from heart failure in his sleep at his residence Dalry at Crescent Road, Hamilton, Brisbane, Queensland on 1 September 1912.