Valentim Ximenes (born 30 September 1966) is an East Timorese politician and academic, and a member of the Fretilin political party.

Between 2017 and 2018, he was the Minister for State Administration under the VII Constitutional Government of East Timor led by Mari Alkatiri.

Previously, between 2005 and 2007, he was the Vice Minister for State Administration under the V Constitutional Government also led by Mari Alkatiri.

[1] In May 2002, he succeeded Vicente Soares Faria [de] as dean of the faculty of social sciences and politics at the UNTL.

[3][4][5] Subsequently, he resumed his academic career as a lecturer at the Faculty of Social Sciences and Politics at the UNTL, and also entered a PhD program at the University of Coimbra.