| IAS | SMS/Chat: I am sorry |
| IC | SMS/Chat: I see |
| id | Internet: Landekode for Indonesien |
| ie | Internet: Landekode for Irland |
| il | Internet: Landekode for Israel |
| ILM | SMS/Chat: I lige måde |
| ILU | SMS/Chat: I love you |
| ILU2 | SMS/Chat: I love you to |
| ILY | SMS/Chat: I love you |
| im | Internet: Landekode for Isle of Man |
| IMHO | SMS/Chat: In my humble opinion |
| IMORN | SMS/Chat: I morgen |
| IMU | SMS/Chat: I miss you |
| IMY | SMS/Chat: I miss you |
| in | Internet: Landekode for Indien |
| io | Internet: Landekode for British Indian Ocean Territory |
| IOU | SMS/Chat: I owe you, Jeg skylder dig |
| IOW | SMS/Chat: In other words |
| iq | Internet: Landekode for Iraq |
| ir | Internet: Landekode for Iran |
| IRAS | SMS/Chat: I really am sorry |
| IRL | SMS/Chat: In real life |
| is | Internet: Landekode for Island |
| it | Internet: Landekode for Italien |
| IYD | SMS/Chat: In your dreams |