Remmy is almost certainly a variant of Remy — and in the pet registry, both spellings likely capture the same impulse: the Ratatouille rat-turned-chef who has been one of Pixar's most beloved characters since 2007. The -my ending softens the name slightly and may reflect phonetic transcription as much as intentional spelling preference.
The Ratatouille Pipeline
Remy from Ratatouille is an almost perfect pet-name source: a small animal with enormous ambition, sensitivity, and skill. The film gave the name a specific warmth for owners who love the character's determination and the story's theme of excellence emerging from unexpected places. Remmy the dog or cat carries that same energy, at least in the owner's imagination.
Spelling Variant Consideration
Remy ranks considerably higher than Remmy in pet registries — the standard spelling has the critical mass. Remmy is the variant-spelling tier, which at this rank includes some records that are phonetic transcriptions. If you love the name, Remy is the spelling with more support and easier recognition. Remmy works fine but adds an unexplained extra consonant that some find charming and others find unnecessary.
Counter-Reading: The Rat Original
Remy is, canonically, a rat. For most pets, this is entirely irrelevant — the name has been fully reclaimed by the broader pop-culture association. But if you name a dog Remmy and someone makes the rat joke, it's a joke that will recur. Some owners love this. Others prefer their pet name not to come with a built-in punchline. See more Pixar-adjacent names at NamesPop.