Joseph Bolkcom (born July 29, 1956) is a former member of the Iowa Senate. A Democrat, he was first elected to the Senate in 1998 and served for 24 years before retiring in 2023. During his tenure he represented the 23rd, 39th and 43rd District of the General Assembly, which includes most of metropolitan Iowa City.

Bolkcom graduated from Saint Ambrose University in Davenport in 1983. He went on to earn a master's degree in Public Affairs from the University of Iowa. He served from 1993 to 1998 on the Johnson County Board of Supervisors. Prior to that he worked for Johnson County Health Department, Senior Advocates, Inc., and Senior Education, Inc. He is a member of the Iowa Chapter of the Sierra Club.