Cindy Winckler (born May 27, 1950) is an American politician and member of the Iowa Senate for the 49th District.

Previously, she served in the Iowa House of Representatives for the 90th District.

As of September 2011[update], Winckler serves on several committees in the Iowa House - the Appropriations, Education, Environmental Protection, and Human Resources committees.

She also serves as the ranking member of the Education Appropriations Subcommittee.

Winckler was first elected in 2000, defeating incumbent Republican John P. Sunderbruch.