- The logo for the Pokémon Center in Tokyo featured Poliwhirl until it was replaced by Piplup in July 2007.
- Poliwhirl was also featured prominently on the center of the November 22nd, 1999 issue of Time Magazine.
- Poliwhirl's sprites and artwork are inconsistent with respect to its gloves. Sometimes they are depicted as mittens, while other times they have separate fingers.
- Poliwhirl shares its category with Poliwag, Poliwrath, and Tympole. They are all known as the Tadpole Pokémon.
- As of Generation VI, Poliwhirl is the only Pokémon with a branch evolution with unequal base stat totals.
