Karolina Kosińska (Polish pronunciation: [karɔˈlina kɔˈsiɲska, -ˈsij̃ska]; born 17 June 1986) is a former tennis player from Poland.

Kosińska began playing tennis aged seven, her favourite surface was clay.

As a professional, her career-high singles ranking was world No.

253, achieved in July 2005, in doubles No.

144 (September 2007).