Katalin Ertsey (born 1966) is a Hungarian journalist and politician, member of the National Assembly (MP) from Politics Can Be Different (LMP) National List between 2010 and 2014.
She was a member of the Committee on Consumer Protection from May 14, 2010 to February 11, 2013 and from September 23, 2013 to May 5, 2014, and also a member of the Committee on Foreign Affairs from March 7, 2011 to May 5, 2014 (as Deputy Chairperson since September 23, 2013).In April 2011 Ertsey said about the new constitution that its fails to account for the constantly-changing family patterns of the 21st century and the couples planning to have children at a future date or single-parent families have not been mentioned in the constitution.
She also called for more parliamentary representation for women.