The 8th Illinois General Assembly, consisting of the Illinois Senate and the Illinois House of Representatives, met from December 3, 1832, to March 2, 1833.
The 8th General Assembly was preceded by the 7th Illinois General Assembly, and was succeeded by the 9th Illinois General Assembly.

Legislation passed on February 7, 1831 in the 7th Illinois General Assembly increased the Senate from 18 to 26 members and the House from 36 to 55 members. This would last until January 14, 1836 when the Senate was increased to 40 Senators and the House increased to 91 representatives.