Dan Mircea Geoană is a Romanian politician and former diplomat who served as president of the Senate of Romania from 20 December 2008 until he was revoked on 23 November 2011. From 21 April 2005 until 21 February 2010, he was the head of the Social Democratic Party. Furthermore, he was the candidate of the party for the position of President of Romania in the 2009 presidential election which he narrowly lost to Traian Băsescu.

The Senate is the upper house in the bicameral Parliament of Romania. It has 136 seats, to which members are elected by direct popular vote using party-list proportional representation in 43 electoral districts, to serve four-year terms.