| Triamudomsuksa pattanakarn Ratchada School | |
| Streetaddress: | Huay Kwang Bangkok |
| Country: | Thailand |
| Schoolnumber: | 1010720084 |
| District: | Huai Kwang |
| Schoolboard: | Bangkok Education Service Area Office 2 |
| Authority: | Office of the Basic Education Commission |
| Campus Type: | Urban |
| Teaching Staff: | 159 |
| Ratio: | 1:25 |
| Avg Class Size: | 40 |
| Gender: | Coeducational |
| Type: | Government |
| Grades: | 7-12 (mathayom 1–6) |
| Language: | Thai; English; Chinese; French; Japanese |
| School Colours: | Pink-blue |
| Established: | 10 February 2003 |
| Status: | Secondary school level |
Triamudomsuksa pattanakarn Ratchada School (Thai: โรงเรียนเตรียมอุดมศึกษาพัฒนาการ รัชดา in Thai pronounced as /trīːəm ùʔdōm sɯ̀k.săː rat tʃʰa daː/) is a school in Bangkok, Thailand, established in 1961.