| Petitcodiac Regional School | |
| Motto: | "Semper Hodie Non Cras" |
| Motto Translation: | Always Today, Never Tomorrow |
| Address: | 1 Corey Avenue |
| Country: | Canada |
| Coordinates: | 45.9341°N -65.1793°W |
| Established: | 1951 |
| District: | Anglophone East School District |
| Superintendent: | Gregg Ingersoll[1] |
| School Number: | 1604[2] |
| Principal: | Yvan Pelletier[3] |
| Principal Label1: | Vice principals |
| Principal1: | Karen Dorken & Tracy Johnston-Lovely[4] |
| Staff: | 48 |
| Grades: | K - 12 |
| Enrollment: | 700+ |
| Colours: | Maroon and Gold |
Petitcodiac Regional School is a combined primary and secondary public school located in Three Rivers, New Brunswick, Canada.
It was originally built in 1951 and presently houses approximately 700 students from Kindergarten through grade 12 with a staff of approximately 48 teachers. The school contains three unique and separate areas housing the elementary school, the middle school and the high school with a common gymnasium, art room, music room, technology lab, wood shop, mechanics garage, and cafeteria. Grades Kindergarten-5 is elementary, 6-8 is middle school, and 9-12 is high school.