| 🤢 Moldy Subway |
| 🥪 Mole Subway |
| 🚉🐒 Monkey Subway |
| 🌙🚇 Moonway Subway |
| 🏔️🥪 Mountain Subway |
| 🥪 Mt. Subway |
| 🚇 Mta Subway |
| 🚇 Mud Subway |
| 🚇🌧️🌊 Muddy Subway |
| 🚇 Mudway Subway |
| 🦄🚇 Narwhal Subway |
| 🚇 Nautilus Subway |
| 🐠🚇 Nemo Subway |
| 🚇🔥 Nether Subway |
| 🚇 Nuclear Subway |
| 🌴🚇 Palm Subway |