| Abbreviation | Definition |
|---|---|
| NGD | New Gold Inc. |
| NGD | New Gold Incorporated |
| NGL | Angle Energy, Inc. |
| NGQ | NGEx Resources Inc. |
| NGQ | NGEx Resources Incorporated |
| NGX | Northgate Minerals Corporation |
| NHC | Nobilis Health Corporation Common Shares (formerly Northstar Healthcare Incorporated) |
| NHC | Northstar Healthcare Inc. |
| NI | Victory Nickel, Inc. |
| NIC | Pure Nickel Inc. |
| NIC | Pure Nickel, Incorporated |
| NIF | Noranda Income Fund |
| NII | Norsat International Inc. |
| NII | Norsat International Incorporated |
| NIO | Niocan Inc. |
| NIO | Niocan Incorporated (de-listed) |
| NIO | Niocan Incorporated (de-listed) |
| NKO | Niko Resources, LTD. |
| NLN | NeuLion, Inc. |
| NLN | NeuLion, Incorporated |