Guillermo José Domenech Martínez (born 17 September 1950) is a Uruguayan lawyer, notary and politician.
Born in Montevideo, Domenech attended St. Catherine's School and Ivy Thomas Memorial School,[1] graduated from University of the Republic, where he studied law and notary.
[3] In the 1989 elections he presented a list to the House of Representatives of the National Party Herrerism faction in support of Luis Alberto Lacalle, but he was not elected.
[4] In 2019, Domenech participated in the founding of the Open Cabildo Party, which proposed the candidacy of former Army Commander-in-Chief Guido Manini Ríos.
[5] In October, it was reported that Domenech would be the vice presidential running mate of Manini Ríos for the 2019 General Election.