| Immigrants and Emigrants (Chapter 245) | 245 |
| Imports and Exports Control (Chapter 347) | 347 |
| Indian Immigrant Labour (Chapter 159) | 159 |
| Industrial Development (Chapter 207) | 207 |
| Industrial Products (Chapter 205) | 205 |
| Informers Rewards (Chapter 39) | 39 |
| Inscribed Rupee Stock (Chapter 321) | 321 |
| Insolvants (Chapter 103) | 103 |
| Institute of Architects (Chapter 128) | 128 |
| Institute of Bankers of Sri Lanka (Chapter 309) | 309 |
| Institute of Chartered Accountants (Chapter 119) | 119 |
| Institute of Chemistry (Chapter 122) | 122 |
| Institute of Corporation of Lawyers (Chapter 111) | 111 |
| Institute of Engineers (Chapter 121) | 121 |
| Institute of Personnel Management (Chapter 120) | 120 |
| Institute of Sinhala Culture (Chapter 472) | 472 |
| Institute of Surveying and Mapping Act (Chapter 124) | 124 |
| Institute of Valuers (Chapter 127) | 127 |
| Insurance (Special Provisions) (Chapter 331) | 331 |
| Insurance Corporation (Chapter 330) | 330 |
| Interim Devaluation Allowance of Employees (Chapter 166) | 166 |
| Intermeddlers with Suitors (Chapter 40) | 40 |
| International Development Association Agreement (Chapter 326) | 326 |
| International Finance Corporation Agreement (Chapter 328) | 328 |
| Interpretation (Chapter 12) | 12 |
