Bishop Garrigan High School

Bishop Garrigan High School is an all-boys high school Frank Heffley wanted to send Greg to which only appears in the online version. However Greg didn't wanted to go there as it was all-boys and wanted to go to Crossland High School. On an open night, Frank was waiting for Bill Walter to move his van, after he saw the folder in Frank's hands he said he also went to the school. This caused Frank to regret sending Greg here.

The uniform colors are maroon and gold.