Ertuğrul Yalçınbayır (born 1946) is a Turkish politician and lawyer who served as the Deputy Prime Minister in the cabinet of Prime Minister Abdullah Gül between 2002 and 2003 as a member of the Justice and Development Party (AKP). He left it before the 2007 general election. He was first elected as a Member of Parliament from the Islamist Welfare Party in 1995 and was re-elected in 1999 from the Virtue Party and 2002 from the AKP. In the 1970s, he had worked for the Republican People's Party (CHP).