The Middle Tennessee Science and Engineering Fair (MTSEF) is the premiere STEM competition for middle and high school students in Nashville-Davidson County and its surrounding counties (Williamson, Rutherford, Wilson, Sumner, Robertson, Cheatham, Dickson, Houston, Humphreys, Montgomery, Stewart, Hickman, Lewis, Maury, Perry, Wayne, Trousdale, Bedford, Giles, Lawrence, Lincoln, Marshall, Moore). The Fair was originally held at Vanderbilt University for 51 years and subsequently at Austin Peay State University for 13 years. Last year, the Fair relocated to Belmont University. For the 65th consecutive year, MTSEF serves as a forum for students to exhibit their scientific and engineering projects to the public. Projects are evaluated for awards in 22 scientific and engineering categories and for special awards funded by local, state, national, and international sponsors. MTSEF is an affiliate of the Society for Science and the Public and sends grand prize winners to compete at the Intel International Science and Engineering Fair (ISEF) competition each year. Top middle school projects move on to compete in the Broadcom MASTERS (Math, Applied Science, Technology and Engineering Rising Stars), the premiere national science and engineering competition for middle school students.

MTSEF is supported by the Middle Tennessee Science and Engineering Fair Foundation, an independent TN non-profit corporation serving to advance secondary school science and engineering education and student research in Middle Tennessee. The Foundation is a 501(c)(3) tax- exempt entity and all donations are tax-deductible to the full extent of the law.