M-N-O-P-Q-R
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| Maddie | Maggie |
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| Maggie Mae | Mai Mai |
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| Marco | Marco |
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| Marlie | Max |
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| Max | Maxie |
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| Mia | Mickey |
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| Mickey | Mickey |
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| Milo | Miss Maggie |
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| Miss Mandy | Molly |
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| Monkey | Muffin |
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| Munchkin | Mya |
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| Nana | Newt |
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| Niko | Oliver |
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| Oreo | Papi |
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| Parker | Pashmena |
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| Patches | Patches |
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| Peaches | Peanut |
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| Pebbles | Pepper |
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| Pinky | Piper |
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| Pookey | Pookie |
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| Princess | Pungle |
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| Puff | Radar |
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| Raven | Reba |
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| Rocky | Roscoe |
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| Rosey | Rosy |
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| Rudy |
