The legislature of the U.S. state of Indiana has convened many times since statehood became effective on December 11, 1816.
In the early 19th century, house members were elected annually; senators were elected for three-year terms.
| November 4, 1816 | January 3, 1817 | |||
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| 1853 | October 1852 | |||
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| 1885 | ||||
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| January 5, 1899 | ||||
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| 1987 | ||||
| 1989 | ||||
| 1991 | ||||
| 1993 | ||||
| 1995 | ||||
| 1997 | ||||
| 1999 | 2000 | |||
| 2001 | ||||
| 2003 | November 2002 | |||
| 2005 | November 2004 | |||
| 2007 | November 7th, 2006 | |||
| 2009 | March 12, 2010 | November 4th, 2008 | ||
| 2011 | March 14, 2012 | November 2, 2010 | ||
| 2013 | March 14, 2014 | November 6, 2012 | ||
| 2015 | March 10, 2016 | November 4, 2014 | ||
| January 3, 2017 | November 8, 2016 | |||
| January 3, 2019 | November 6, 2018: Senate | |||
| 2021 | March 8, 2022 | November 3, 2020: House, Senate | ||
| 123rd | January 9, 2023 | March 8, 2024 | November 8, 2022: House, Senate | |
| 124th | 2025 | November 5, 2024: House, Senate |