| South Brunswick High School | |
| Ceeb: | 340393 |
| Principal: | Dr. Brad Lewis |
| Country: | United States |
| Campus: | 44acres |
| Colors: | Columbia blue and navy |
| Teamname: | Cougars |
| Enrollment: | 1,172 (2022–23)[1] |
| Ratio: | 16.99 |
| Teaching Staff: | 68.97 (FTE) |
| Motto: | Set the Standard |
| Location: | 260 Cougar Drive |
| Zipcode: | 28461 |
| Coordinates: | 34.0114°N -78.0428°W |
| Pushpin Map: | North Carolina#USA |
South Brunswick High School is a high school within the Brunswick County School District in Southport, North Carolina. The principal is Michael "Chip" Hodges.
The school is currently the smallest of the three traditional high schools in Brunswick County Schools. The Cougars compete in the NCHSAA MEC 3A/4A conference and are the smallest school in the conference. After Hurricane Florence the schools enrollment dipped to below 1,000 students for the first time since the early 2000s. The storm caused students to miss schools for around a month and caused much damage to both the school and the community. The school has just recently recovered from COVID-19 pandemic and, as of the 2022-2023 school year, removed the majority of COVID-19 restrictions.
The South Brunswick High School Marching Band, known as The Pride of the South Coast Cougar Marching Band, is directed by Michael Palmer. The marching band plays at football games, regional competitions, and local parades in Southport and Wilmington, North Carolina.
The Cougar Battalion is South Brunswick Highschool's JROTC Unit. The Cougar Battalion offers 3 different competition teams; Drill Team, Rifle Team, and Archery Team, all of which compete at regional competitions. The Cougar Battalion is part of the U.S. Army Cadet Command's 4th Brigade.