Adeline Jay Geo-Karis (March 29, 1918 – February 10, 2008) was a Republican politician and a member of the Illinois Senate for the 31st District, where she served for over 25 years.

[2] Known for her no-nonsense attitude and her ability to work across party lines,[2] she also served for a time as Mayor of Zion.

Commander in the United States Naval Reserves before retiring with a top secret security clearance.

Geo-Karis finished her final term in the 94th General Assembly where she served as the Executive Appointments Co-Chairperson.

[1] Geo-Karis was also an avid supporter of Saint Demitrios Greek Orthodox Church, and was a member there for over fifty years.