Equality Illinois (EI) is an LGBTQ advocacy organization founded in 1991 that focuses on education and legal protection for the LGBTQ community in Illinois.

The Equality Illinois Institute focuses on the educational and charitable aspects of the mission. EI's initiatives extend throughout every sector of Illinois life, reaching individuals and organizations both in the LGBTQ community and society at large, across the private, public and non-profit sectors.

The Equality Illinois Political Action Committee (PAC) promotes candidates for public office who will advocate for and support legislation that advances full equality for LGBTQ individuals and families.

The organization is a member of the Equality Federation.

Equality Illinois was formerly called the Illinois Federation for Human Rights, and Lana Hostetler cofounded it.

Equality Illinois is an LGBTQ civil rights organization based in the Midwest. Among its accomplishments are:

In 2012–2013, Equality Illinois played a significant role advocating for same-sex marriage in Illinois. The organization partnered with Lambda Legal and ACLU of Illinois to create the Illinois Unites for Marriage coalition to push for the bill. The same-sex marriage bill passed the legislature in 2013 and was signed into law by Gov. Pat Quinn on November 20, 2013.

The Equality Illinois Gala is an annual event. The 2019 event was attended by approximately 1,400 guests, including several public officials.