Ulysse Trélat (13 November 1798 – 29 January 1879) was a French medical doctor and politician.

Ulysse Trélat was born on 13 November 1798[a] in Montargis, Loiret, the son of a notary.

[3] Trélat was a founding member of the lodge Aide de toi, le ciel t'aidera.

He became colonel in the National Guard, representative for Puy-de-Dôme in 1848 and vice-president of the Constituent Assembly.

Their first child was Émile Trélat, born in Paris on 6 March 1821 and later legitimized, who went on to become a Deputy for the Seine from 1891 to 1898.