Tau Beta Sigma is a co-educational recognition and service sorority for collegiate band members. It was founded at the Texas Technological College (now Texas Tech University) as a recognitions society for women band members in 1946.

Districts Tau Beta Sigma organizes its chapters and colonies into seven districts, six of which are named for the geographical region of the United States that they represent.Tau Beta Sigma Const., 5.101. The U.S. districts include:

North Central District: Indiana, Illinois, Kentucky, Michigan, Ohio, and Wisconsin Northeast District: Connecticut, Delaware, District of Columbia, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, Virginia, and West Virginia Midwest District: Colorado, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, North Dakota, South Dakota, and Wyoming Southeast District: Alabama, Florida, Georgia, Mississippi, North Carolina, South Carolina, and Tennessee Southwest District: Arkansas, Louisiana, New Mexico, Oklahoma, and Texas Western District: Alaska, Arizona, California, Hawaii, Idaho, Nevada, Oregon, Utah, and Washington

The seventh district is a de jure "International District" which would contain any chapter located outside of the United States, but there are no international chapters. Each chapter is automatically a member of the district in which its state is located, unless it appeals to the National Council to join a neighboring district.

Chapters Following is a list of Tau Beta Sigma chapters, with active chapters indicated in bold and inactive chapters are in italics.