| Samudradevi Balika Vidyalaya සමුද්රදේවී බාලිකා විද්යාලය | |
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| Location | |
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| Coordinates | 06°52′14.2″N 79°53′25.9″E / 6.870611°N 79.890528°E |
| Information | |
| Type | Government school |
| Motto | අත්ත දීපා විහරත Be a Light to Yourself |
| Established | 5 May 1915 |
| Grades | Grade 1 to 13 |
| Gender | Girls' school |
| Age | 6 to 19 |
| Enrollment | 3000+ |
| Website | https://samudradevibalika.lk/ |
Samudradevi Balika Vidyalaya (Sinhala: සමුද්රදේවී බාලිකා විද්යාලය) is a public girls' school located in Nugegoda, Sri Lanka. It was founded on 5 May 1915 and is considered as the oldest girls' school in Nugegoda.[citation needed]