|First Appearance||Constellation Pecola|
|Voiced By||ENG: Chris Wiggins
JP: Umeji Sasaki
Pecolius (ペコリウス, pekoriusu) is a character from Pecola series.
Pecola's grandfather who bears a resemblance to Indiana Jones because of his adventures in the name of science and archeology. He appreciates Pecola's unique personality, but at times reminds him to stay out of trouble.