| Dacula High School | |
| Established: | 1905 |
| Type: | Public |
| Principal: | Jeannie Hidalgo |
| Head Name: | Second Master |
| Head Name2: | Assistant Headmaster |
| Teaching Staff: | 143.30 (FTE) |
| Ratio: | 17.43 |
| Enrollment: | 2,498 (2022–23)[1] |
| Grades: | 9–12 |
| Address: | 123 Broad Street |
| City: | Dacula |
| State: | Georgia |
| Country: | United States |
| Pushpin Map: | USA Georgia#USA |
| District: | Gwinnett County Public Schools |
| Campus: | Suburban |
| Athletics: | Baseball, basketball, cheerleading, cross country, football, golf, lacrosse, soccer, softball, swim & dive, tennis, track & field, volleyball, and wrestling |
| Mascot: | Falcon |
| Rival: | Mill Creek High School |
| Yearbook: | The Peregrine |
| Zipcode: | 30019 |
Dacula High School is a high school in Dacula, Georgia, United States, serving students in grades 9–12. It is operated by Gwinnett County Public Schools. It is a part of the Dacula cluster and is fed from Dacula Middle School.
The school's colors are old gold, white, and navy blue, and its mascot is the Falcon.