Alpha Iota () is a national collegiate professional sorority for women in the field of business. Alpha Iota Omicron was established in 1925 at the American Institute of Business in Des Moines, Iowa. The sorority has collegiate and alumnae chapters. Previously, it also had professional chapters.
Collegiate chapters.
Following is a partial list of Alpha Iota collegiate chapters, with active chapters indicated in bold and inactive chapters and institutions indicated in "italics."
Professional chapters.
Following is a list of former Alpha Iota professional chapters, with inactive chapters indicated in "italics."
Alumnae chapters.
Following is a list of Alpha Iota alumnae chapters, with active chapters indicated in bold and inactive chapters in "italics."