United South High School is a high school located in the southern portion of Laredo, Texas, United States. It is a part of the United Independent School District. It consists of over 40 school organizations, and mostly serves students with Hispanic ethnicity.

There is a no-bullying tolerance in the school, and the UISD dress code is strictly enforced.

Along with offering various academic courses (G/T & AP), United South is also a college prep school, and offers education in vocational programs (Construction Technology, Auto Body, Future Farmers of America, and Welding). It is also known for its Academy of Global Business and Advanced Technology.

Alumni activities include the Men's and Women's Youth Conferences, Career Day, and the inviting of special guest speakers.

United South High School houses the Academy of Global Business and Advanced Technology, a magnet school focused on business and technology education. This academy is a small section within the school. To join it, students take a timed entrance exam. They can choose technology or business. Business classes include Accounting I and Entrepreneurship (sophomores), Securities and Investments and Business Law (juniors), and Distribution and Logistics (seniors). Technology classes include A+ Certification (sophomores), Internetworking I (juniors), and Internetworking II (seniors). Magnet students are required to graduate on the distinguished plan and must have at least 250 community service hours, 4 measures, and 32 high school credits in order to do so.

Communities within the United South High boundary include portions of Laredo and the following census-designated places:

• Official website