Is ash's taillow a boy or a girl?

Answer 1

In A Triple Fighting Chance!, (DP068) he fought Maylene's Lucario in a Gym Battle, resulting in a Double KO and a tied match. During the battle, Buizel learned Water Pulse. Buizel's version is unique, as Buizel's Water Pulse retains its spherical shape, which is presumably inspired by the Aura Sphere of Maylene's Lucario.

Buizel also revealed his ability, Swift Swim, for the first time, which became critical to Ash's performance.

Answer 2

There is no info on whether Ash's Buizel is a boy or a girl.

Another opinion

Ash's Buizel is a boy.

Answer 3

It's not specific in the Pokemon TV series, but it was known to be a male.