50th Arizona State Legislature
← 49th 51st →
Arizona State Capitol (2014)
Overview
Legislative body	Arizona State Legislature
Jurisdiction	Arizona, United States
Term	January 1, 2011 – December 31, 2012
Senate
Members	30
President	Russell Pearce (through November 9, 2011) Steve Pierce (effective November 10, 2011)
Temporary President	Sylvia Allen
Party control	Republican (21–9)
House of Representatives
Members	60
Speaker	Kirk Adams (through April 28, 2011) Andy Tobin (effective April 28, 2011)
Party control	Republican (40–20)
Sessions
1st January 10 – April 20, 2011 2nd January 9 – May 3, 2012
Special sessions
1st January 19 – January 20, 2011 2nd February 14 – February 16, 2011 3rd February 14 – February 16, 2011 4th November 11 – November 11, 2011

The 50th Arizona State Legislature, consisting of the Arizona State Senate and the Arizona House of Representatives, was constituted in Phoenix from January 1, 2011, to December 31, 2012, during the first two years of Jan Brewer's first full term in office. Both the Senate and the House membership remained constant at 30 and 60, respectively. The Republicans gained three seats in the Senate, increasing their majority to 21–9. The Republicans also gained five seats in the lower chamber, giving them a 40–20 majority.

The Legislature met for two regular sessions at the State Capitol in Phoenix. The first opened on January 10, 2011, and adjourned on April 20, while the Second Regular Session convened on January 9, 2012, and adjourned sine die on May 3.^{[1]: i [2]: i}

There were four Special Sessions, the first of which was convened on January 19, 2011, and adjourned on January 20;^[3]: 2771 the second convened on February 14, 2011, and adjourned sine die on February 16;^[3]: 2779 the third convened on February 14, 2011, and adjourned sine die February 16;^[3]: 2991 and the fourth convened on November 11, 2011, and adjourned sine die later that same day.^[3]: 2995

The asterisk (*) denotes members of the previous Legislature who continued in office as members of this Legislature.^{[1]: vii–viii}

The asterisk (*) denotes members of the previous Legislature who continued in office as members of this Legislature.^{[1]: ix–x}