| National Apprenticeship (Chapter 149) | 149 |
| National Arts Council, Mahanuwara (Chapter 470) | 470 |
| National Council of the Young Men’s Christian Association (Chapter 449) | 449 |
| National Development Bank of Sri Lanka (Chapter 308) | 308 |
| National Film Corporation of Sri Lanka (Chapter 366) | 366 |
| National Institute of Business Management (Chapter 185) | 185 |
| National Lotteries Board (Chapter 316) | 316 |
| National Matric Conversion (Chapter 189) | 189 |
| National Museums (Chapter 391) | 391 |
| National Planning Council (Chapter 315) | 315 |
| National Prices Commission (Chapter 217) | 217 |
| National Science Council (Chapter 390) | 390 |
| National Water Supply and Drainage Board (Chapter 541) | 541 |
| National Youth Services (Chapter 11) | 11 |
| Naval and Victualling Stores (Chapter 54) | 54 |
| Navy (Chapter 626) | 626 |
| Nindagama Lands (Chapter 301) | 301 |
| Non-Episcopalian Churches (Chapter 431) | 431 |
| Northern Province Teachers’ Association Benevolent Fund (Chapter 493) | 493 |
| Notaries (Chapter 110) | 110 |
| Nugegoda Young Men’s Buddhist Association (Chapter 400) | 400 |
| Nuisances (Chapter 562) | 562 |
| Nursing Homes (Regulation) (Chapter 551) | 551 |
