The Research Triangle Regional Public Transportation Authority, known as GoTriangle, provides regional bus service to the Research Triangle region of North Carolina in Wake, Durham, and Orange counties. The GoTriangle name was adopted in 2015 as part of the consolidated GoTransit branding scheme for the Triangle. In 2023, the system had a ridership of 1,735,700, or about 6,300 per weekday as of the fourth quarter of 2023.

The Research Triangle, or simply The Triangle, are both common nicknames for a metropolitan area in the Piedmont region of the U.S. state of North Carolina. Anchored by the cities of Raleigh and Durham and the town of Chapel Hill, the region is home to three major research universities: North Carolina State University, Duke University, and the University of North Carolina at Chapel Hill, respectively. The "Triangle" name originated in the 1950s with the creation of Research Triangle Park located between the three anchor cities, which is the largest research park in the United States and home to numerous high tech companies.