| Sort by Entry Name | Sort by Category | Featured Entry |
|---|---|---|
| identity card | Nationhood | Yes |
| income tax | Economy | Yes |
| Indian Muslims | Indian | Yes |
| Integrated Programme | Education | Yes |
| integrated resort | Recreation | Yes |
| Iskandar Jalil | Arts, Culture and Entertainment | Yes |
| I Not Stupid | Arts, Culture and Entertainment | No |
| Iau, Robert | People | No |
| Ibbetson, Robert | History | No |
| Ibrahim, Temenggong | History | No |
| ice kachang | Food | No |
| Immigration and Checkpoints Authority | Government | No |
| imports | Economy | No |
| income distribution | Economy | No |
| independent schools | Education | No |
| Indian classical music | Arts, Culture and Entertainment | No |
| Indian National Army and Monument | World War II | No |
| Indians | Indian | No |
| India-Singapore relations | Foreign Relations | No |
| Indonesia-Singapore relations | Foreign Relations | No |
| Industrial Arbitration Court | Government | No |
| industrial estates | Economy | No |
| industrialization | Economy | No |
| Infocomm Development Authority of Singapore | Economy | No |
| information technology | Economy | No |
| Inland Revenue Authority of Singapore | Economy | No |
| INSEAD | Education | No |
| insects | Nature | No |
| Institute of Bioengineering and Nanotechnology | Science | No |
| Institute of Contemporary Art Singapore | Arts, Culture and Entertainment | No |
| Institute of Defence and Strategic Studies | Education | No |
| Institute of Mental Health/Woodbridge Hospital | Health | No |
| Institute of Molecular and Cell Biology | Science | No |
| Institute of Policy Studies | Education | No |
| Institute of Southeast Asian Studies | Education | No |
| Institute of Technical Education | Education | No |
| Intellectual Property Office of Singapore | Government | No |
| interest rates | Economy | No |
| Internal Security Act | Legal | No |
| Internal Security Department | Government | No |
| International Civil Aviation Organization | Foreign Relations | No |
| International Enterprise Singapore | Economy | No |
| International Maritime Organization | Foreign Relations | No |
| international schools | Education | No |
| Internet | Economy | No |
| Inter-Racial Confidence Circles | Society | No |
| investment banks | Economy | No |
| Iqbal, K.T.M. | Indian | No |
| Isham, Ashley | Arts, Culture and Entertainment | No |
| Iskander Shah | History, Premodern | No |
| Islam | Islam | No |
| islands | Geography | No |
| Ismail Marjan | Sports | No |
| Istana and Sri Temasek | Places and Buildings | No |
| Istana Kampung Gelam | Malay | No |
| Itagaki Seishiro, General | World War II | No |