| SM Sains Raja Tun Azlan Shah | |
| Native Name: | SERATAS |
| Motto: | Berdisiplin, Berilmu, Berbakti Discipline Knowledge Serve |
| Founded: | 1 January 1982 |
| City: | Taiping |
| State: | Perak |
| Country: | Malaysia |
| Type: | Secondary School, Boarding School Sekolah Berasrama Penuh |
| Affiliations: | Sekolah Berasrama Penuh Ministry of Education (Malaysia) |
| District: | Taiping |
| Colours: | Blue, Yellow, Black |
| Yearbook: | SERATAS |
| Free Label 1: | First Principal |
| Free Label 2: | Previous Principal |
| Free Label 3: | Sports House |
Sekolah Menengah Sains Raja Tun Azlan Shah (English: Raja Tun Azlan Shah Science Secondary School; abbreviated SERATAS) is a boarding school located 3 km from the town of Taiping, Perak, Malaysia. It is situated at the foot of Bukit Larut (Maxwell Hill). The school covers an area of and was founded on 1 January 1982 under the Rancangan Malaysia Ketiga (RMK-3). The school was formerly known as Sekolah Menengah Sains Perak and as Sekolah Menengah Sains Taiping or SEMESTA.