What does etsu stand for? ETSU stands for East Tennessee State University (Johnson City, TN) This definition appears very frequently and is found in the following Acronym Finder categories: Organizations, NGOs, schools, universities, etc.Where is east tennessee state university located? East Tennessee State University (ETSU) is a public university located in Johnson City, Tennessee.What is my university id uid number? Your University ID (UID) is a unique, nine-digit number, which can be located in several places including: On your time reporting applications (TRS,HBS and KRONOS) On atyourserviceonline.ucop.edu (under the Employment Verification Tab) On your W2 under Control No. If you are a student, your employee UID is the same as your Student ID.