| IWN | I Will Never
| Others |
| IWN | I Witness News
| Others |
| IWN | I Would Never
| Others |
| IWN | Idaho Women's Network
| Others |
| IWN | Idaho Womens Network
| Others |
| IWN | Immediate Warfighter Need
| Others |
| IWN | Independent Workers Network
| Others |
| IWN | Indian Women Network
| Others |
| IWN | Indigenous Womens' Network
| Others |
| IWN | Ingenieur Wolfgang Niemann
| Others |
| IWN | Inland Waterways News
| Others |
| IWN | Inside WiNe
| Others |
| IWN | Inspection Waiver Notice
| Others |
| IWN | Institute for Wildlife Research and Nature Protection
| Others |
| IWN | Integrated Wireless Network
| Others |
| IWN | Intelligent Water Networks
| Others |
| IWN | International Workshop on Nitride
| Others |
| IWN | Irish Weather Network
| Others |
| IWN | Irvine World News
| Others |
| IWN | Irving Women's Network
| Others |
| IWN | Islamic World News
| Others |
| IWN | Island Writers Network
| Others |
| IWN | Island Writers' Network
| Others |
| IWN | Israel Women's Network
| Others |