Caucus of Mayors and Ostravak () is a parliamentary group in the Czech Senate.
Members 5 senators: TOP 09 and Mayors and Independents: Jaromír Štětina, a senator re-elected in 2010, Jan Horník senator re-elected in 2010, Luděk Jeništa senator elected in 2012 Ostravak: Leopold Sulovský, a senator elected in 2012 Mayors and Independents and Citizens for Budějovice : Jiří Šesták, a senator elected in 2012
Former members Freedom Union–Democratic Union: 1 senator elected in 2002 Liberal Reform Party: 1 senator elected in 2002 Path of Change: 1 senator elected in 2002 Independent Mayors for Region: 1 senator elected in 2002 Party for the Open Society: Soňa Paukrtová, a senator re-elected in 2006 Civic Democratic Alliance: Karel Schwarzenberg, Foreign minister, a senator elected in 2004
See also Senate of the Czech Republic 2008 Czech Senate election