|First appearance||Keroro Land Volume 21|
|Species / Type||Keronian|
Patsutsu (パツツ) is a character in Keroro Land.
Patsutsu is a sky blue Keronian wearing an indigo cap with a crown on his head. The most common feature is he's wearing an underwear, and two underwears at the end of his hat flaps, and wearing a red cape. His eyes are round and dark green pupils, his symbol is also a pair underwear.
Patsutsu comes from the word アンダーパンツ (Andapantsu) which means underpants in English.