Tanjay Science High School
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| Tanjay City Science High School | |
| File:TCSHS.jpg | |
| Established | 2003 |
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| Motto | The step from zero to one belongs to God. |
| School type | Public science high school |
| Principal/School Head | Mr. Adonis Torres (2011–2017) |
| Enrollment | 257 (school year 2012-2013) |
| Location | Opao, Tanjay City |
| Office Phone No. | (035) 415-9647 |
| Grades | 7 to 12 |
Tanjay City Science High School (TCSHS) is a public high school located in Tanjay City, Negros Oriental, Philippines. It is a DepEd-recognized science high school.
Established in 2003, its first graduating class was composed of 13 students. Following that year, the school moved campuses from a smaller location to its present-day campus.