| Nakhon Sawan School | |
| Native Name: | โรงเรียนนครสวรรค์ |
| City: | Nakhon Sawan |
| Postalcode: | 60000 |
| Country: | Thailand |
| Coordinates: | 15.712°N 100.1332°W |
| Schoolboard: | The Secondary Education Service Area Office 42 |
| Authority: | Office of the Basic Education Commission |
| Founder: | Phra Khru Dhammadhitivongse |
| Director: | Phansak Srithong |
| Teaching Staff: | 107 |
| Gender: | Coeducational |
| Type: | Government |
| Grades: | 7–12 (mathayom 1–6) |
| Campus Type: | Urban |
| Song: | Nakhon Sawan March |
| Motto Translation: | Wisdom is a happiness fortune |
| School Colours: | Purple-White |
| Established: | 1905 (first period), 21 September 1962 (current location) |
| Website: | http://www.nssc.ac.th/ |
Nakhon Sawan School (th|โรงเรียนนครสวรรค์|link=no) is a state school and provincial school of Nakhon Sawan, Thailand. Founded in 1905 by, in currently, the school has one of schools which large yearly enrolment in the country
Phra Khru Dhammadhitivongse (พระครูธรรมฐิติวงศ์), abbot of, founded the school in 1905 by used sermon hall as school Building, the small school have 23 students in then, in 1910, the government office gave budget for build new building, when the building completed, 9-month later, the building was set on fire, ministry of education gave budget and moved the school to provincial temple (วัดหัวเมือง) and teaching as junior high school
In 1958, ministry of education has approved new land which located in teak forest on foot of the hill and be government property in then, 1962, the school was receive budget 800,000 baht for build 2-class wood school building, Nakhon Sawan's people thought must build concrete building better than, then they gave their money for build the first school building and made stone laying ceremony on 21 September 1962, the school made the day as school's birthday
| No. | Name | Time | |
|---|---|---|---|
| 1 | Phra Khru Dhammadhitivongse (พระครูธรรมธิติวงศ์) | 1905–1908 | |
| 2 | Phra Khru Sawan Nagarajan (พระครูสวรรค์นคราจารย์) | 1908–1913 | |
| 3 | Khun Banjerd Wichachan (ขุนบรรเจิดวิชาชาญ) | 1913–1915 | |
| 4 | Khun Kumarowatha (ขุนกุมาโรวาท) | 1915–1919 | |
| 5 | Khun Sekhawutthasueksa (ขุนเสขวุฒิศึกษา) | 1919–1922 | |
| 6 | Khun Aphirak Chanya (ขุนอภิรักษ์จรรยา) | 1922–1927 | |
| 7 | Mr. Sanit Masaman (นายสนิท มษามาน) | 1927–1932 | |
| 8 | Mr. Prasert Charoentoe (นายประเสริฐ เจริญโต) | 1932–1934 | |
| 9 | Mr. Luean Wutthayakorn (นายเลื่อน วุฑฒยากร) | 1934–1941 | |
| 10 | Mr. Thep Insuwan (นายเทพ อินสุวรรณ) | 1941–1942 | |
| 11 | Mr. Thin Ratkanok (นายถิ่น รัติกนก) | 1942–1951 | |
| 12 | Mr. Chok Suwannachin (นายโชติ สุวรรณชิน) | 1951–1966 | |
| 13 | Mr. Sombat Saengrungrueng (นายสมบัติ แสงรุ่งเรือง) | 1966–1971 | |
| 14 | Mr. Phirom Butsayakul (นายภิรมย์ บุษยกุล) | 1972–1976 | |
| 15 | Mr. Uthen Charoenkul (นายอุเทน เจริญกูล) | 1976–1980 | |
| 16 | Mr. Cheun Srisawat (นายชื่น ศรีสวัสดิ์) | 1980–1986 | |
| 17 | Mr. Thiraphon Klangnapha (นายธีรพนธ์ กลางนภา) | 1986–1996 | |
| 18 | Mr. Chalerm Hongsamrith (นายเฉลิม หงษ์สัมฤทธิ์) | 1996–1999 | |
| 19 | Mr. Wiwat Aniwatkul (นายวิวัฒน์ อนิวรรตกูล) | 2000–2003 | |
| 20 | Ms. Bubpha Senawin (นางสาวบุบผา เสนาวิน) | 2003–2010 | |
| 21 | Ms. Phenjarat Singhthong (นางสาวเพ็ญจรัส สิงห์ทอง) | 2011–2013 | |
| 22 | Mr. Winai Thongman (นายวินัย ทองมั่น) | 2014–2016 | |
| 22 | Mr. Phansak Srithong (นายพันศักดิ์ ศรีทอง) | 2016–current |