|Episode First Shown in|
|First Known Owner|
|First Game Appeared in|
|National Dex Number||#320|
Wailmer has a dark blue body on the top, and a tan underbelly with groves. It has two fins that have finger-like appendages, baleen plates that resemble teeth, and a blowhole on the top of its head.
- Several wild Wailmer appeared in From Johto to Hoenn! An Electrifying Detour. One in particular carried Kyle along the ocean.
- May's Wailmer debuted in Vs. Delcatty.
- Juan's Wailmer appeared in Vs. Relicanth and Sealeo.
- Wild Wailmer appeared in Daddy Issues: Raising the Prince of the Sea.
- PIA agent Joy's Wailmer appeared in Vs. Wailmer.
- A coordinator's Wailmer appeared in Vs. Ludicolo.
- Water Gun
- Water Pulse
- Water Spout
- Hydro Pump
- Heavy Slam